FD(1)              UNIX-OS Programmer's Manual              FD(1)



NNAAMMEE
     fd - file & directory maintenance tool

SSYYNNOOPPSSIISS
     ffdd [ --aabbCCeeffhhiikkllmmNNnnPPrrSSssTTttuuvvxx ] [ --_N_A_M_E==_v_a_l_u_e ] [ _d_i_r_e_c_t_o_r_y [
     _d_i_r_e_c_t_o_r_y_2 _._._. ]]
     ffddsshh [ --aabbCCcceeffhhiikkllmmNNnnPPrrSSssTTttuuvvxx ] [ _a_r_g_s ]

DDEESSCCRRIIPPTTIIOONN
     FFdd is a file & directory maintenance tool considered for the
     text terminals on general UNIX.  It aims for a clone of the
     same named utility which is made for the PC/AT compatible
     machine and PC-9800 series.  In fact, it is upper compatible
     functionally.

     FFdd shows the browser screen listing files when you have
     invoked it.  You can input some key which is bound each com-
     mand, to execute various operations.

     (In the following description, ((UUNNIIXX)) means that the opera-
     tion is implemented only on UNIX version and not effective
     on MS-DOS version.  As well as it, ((DDOOSS)) means that the
     operation is implemented only on MS-DOS version.)

     OOppttiioonnss
     The command line option is used for setting internal shell
     operations and setting the internal variables described
     below.  You can use any variable name as the internal vari-
     able, but ffdd can accept only those which are described in
     the below section of EENNVVIIRROONNMMEENNTT VVAARRIIAABBLLEESS.  If you specify
     _d_i_r_e_c_t_o_r_y, the current directory is moved to the directory
     initially.  If you specify _d_i_r_e_c_t_o_r_y_2 _._._., the split window
     mode is invoked, and the current directoris of the supple-
     mental windows are moved to the each directory.

     The following options are available for the internal shell.

     --cc _s_t_r_i_n_g
          Commands described by _s_t_r_i_n_g are executed and exit
          immediately.  It is effective only when it is invoked
          as ffddsshh.

     --ii   If the --ii flag is present or if the standard
          input/output is a terminal, the shell is interactive
          shell.

     --ss   If the --ss flag is present or if no _a_r_g_s is specified,
          commands for the shell are read from the standard
          input.  Any remaining argument specifies the positional
          parameter.

     --rr   The shell is a restricted shell.  Specifically, the
          following operations are disallowed.
               changing the current directory
               setting the value of $$PPAATTHH, $$SSHHEELLLL and $$EENNVV
               specifying command names include //
               redirecting output (>> and >>>>)
               IINN_DDIIRR         OOUUTT_DDIIRR        LLOOGG_TTOOPP
               LLOOGG_DDIIRR        AATTTTRR_FFIILLEE      CCOOPPYY_FFIILLEE
               MMOOVVEE_FFIILLEE      DDEELLEETTEE_FFIILLEE    DDEELLEETTEE_DDIIRR
               RREENNAAMMEE_FFIILLEE    MMAAKKEE_DDIIRR       WWRRIITTEE_DDIIRR
               TTRREEEE_DDIIRR       BBAACCKKUUPP_TTAAPPEE    EEDDIITT_FFIILLEE
               UUNNPPAACCKK_FFIILLEE    PPAACCKK_FFIILLEE      LLOOGG_TTRREEEE
               CCOOPPYY_TTRREEEE      MMOOVVEE_TTRREEEE      UUNNPPAACCKK_TTRREEEE
               FFIINNDD_DDIIRR       AATTTTRR_DDIIRR
          When invoked as rrffdd or rrffddsshh, it becomes this res-
          tricted shell automatically.

     --ll   The shell is a login shell.

     --NN   Reading the initial configuration files is omitted.

     In addition, the options described below in the description
     of sseett the builtin command are available.

     SSccrreeeenn LLaayyoouutt
     FFdd has the 3 major screen modes.  In the browser screen, you
     can select from the file list and execute each command.  In
     the archive browser screen, files in the archive file are
     listed separately by directory, and you can browse as well
     as the browser screen.  In the tree screen, you can move on
     the directory tree and select the directory path.

     In all screen modes, each 33 lines on the top/bottom of the
     screen are used for the various information of ffdd.. The top
     information lines sometimes become 44 lines.  The screen lay-
     out is the following.

     line#     Description

     11         The title line.  The clock at the right end is
               updated every 1100 seconds.

     22         The information line.  It displays information in
               this order: the current page (and the total
               pages), the number of marks (ant the total marks),
               the sorted type, the pattern string for file
               search.

     33         The path line.  It displays the fullpath of the
               current directory.  In the archive browser screen,
               it displays the fullpath of the archive file and
               the current path in the archive.

     22 (optional)
               The file size information line.  It displays the
               total size of the marked files in the directory
               (and the total size of all files), the total capa-
               city and the free size of the file system includ-
               ing the current directory.  This line appears by
               SSIIZZEEIINNFFOO the internal variable setting.  When
               this line is displayed, The information line and
               the path line are displayed 1 line under each.

     bboottttoomm -- 22
               The stack line.  It displays files temporarily
               which you push in stack, when arranging files.

     bboottttoomm -- 11
               The function line.  It displays the operations of
               function keys.

     bboottttoomm    The status line.  It displays the status of the
               file on the cursor position.  It also displays
               warning messages when command is executed with
               some troubles.

     IInntteerrnnaall CCoommmmaannddss
     You can use the following internal commands on ffdd.  While
     any user can change the key binding for these internal com-
     mands, here shows the default key binding.  The identifier
     is used when it is executed from the command line of
     EEXXEECCUUTTEE_SSHH command, and when the user defines the key bind-
     ing.

     Identifier          Command                       Key

     CCUURR_UUPP              Move a cursor up              UUpp
     CCUURR_DDOOWWNN            Move a cursor down            DDoowwnn
     CCUURR_RRIIGGHHTT           Move a cursor right           RRiigghhtt
     CCUURR_LLEEFFTT            Move a cursor left            LLeefftt
     RROOLLLL_UUPP             Turn ahead to the next page   PPaaggeeDDoowwnn
     RROOLLLL_DDOOWWNN           Turn back to the prev. page   PPaaggeeUUpp
     CCUURR_TTOOPP             Move a cursor top             BBeegg(<)
     CCUURR_BBOOTTTTOOMM          Move a cursor bottom          EEooll(>)
     FFNNAAMMEE_RRIIGGHHTT         Shift right a filename        ((
     FFNNAAMMEE_LLEEFFTT          Shift left a filename         ))
     OONNEE_CCOOLLUUMMNN          Change layout into 1 column   11
     TTWWOO_CCOOLLUUMMNNSS         Change layout into 2 columns  22
     TTHHRREEEE_CCOOLLUUMMNNSS       Change layout into 3 columns  33
     FFIIVVEE_CCOOLLUUMMNNSS        Change layout into 5 columns  55
     MMAARRKK_FFIILLEE           Mark a file                   TTaabb
     MMAARRKK_FFIILLEE22          Mark and move down            SSppaaccee
     MMAARRKK_FFIILLEE33          Mark and move in a page       ^^SSppaaccee(^@)
     MMAARRKK_AALLLL            Mark all files                HHoommee(+)
     MMAARRKK_RREEVVEERRSSEE        Mark all files reversely      EEnndd(-)
     MMAARRKK_FFIINNDD           Mark the matched files        **
     IINN_DDIIRR              Change to a sub directory     RReettuurrnn
     OOUUTT_DDIIRR             Change to a parent directory  BBss
     LLOOGG_TTOOPP             Change to a root directory    \\
     RREERREEAADD_DDIIRR          Reread the current directory  ^^LL
     PPUUSSHH_FFIILLEE           Push a file to the stack      DDeell(])
     PPOOPP_FFIILLEE            Pop a file from the stack     IInnss([)
     LLOOGG_DDIIRR             Change to a logical directory FF11(l)
     EEXXEECCUUTTEE_FFIILLEE        Execute a file                FF22(x)
     CCOOPPYY_FFIILLEE           Copy a file                   FF33(c)
     DDEELLEETTEE_FFIILLEE         Delete a file                 FF44(d)
     RREENNAAMMEE_FFIILLEE         Rename a file                 FF55(r)
     SSOORRTT_DDIIRR            Sort the current directory    FF66(s)
     FFIINNDD_FFIILLEE           Find files                    FF77(f)
     TTRREEEE_DDIIRR            Display the tree screen       FF88(t)
     EEDDIITT_FFIILLEE           Edit a file                   FF99(e)
     UUNNPPAACCKK_FFIILLEE         Unpack a file                 FF1100(u)
     AATTTTRR_FFIILLEE           Change a file attribute       FF1111(a)
     IINNFFOO_FFIILLEESSYYSS        Display a file system info.   FF1122(i)
     MMOOVVEE_FFIILLEE           Move a file                   FF1133(m)
     DDEELLEETTEE_DDIIRR          Delete a directory            FF1144(D)
     MMAAKKEE_DDIIRR            Make a directory              FF1155(k)
     EEXXEECCUUTTEE_SSHH          Execute a child process       FF1166(h)
     WWRRIITTEE_DDIIRR           Write a displayed directory   FF1177(w)
     BBAACCKKUUPP_TTAAPPEE         Backup into a tape            FF1188(b)
     VVIIEEWW_FFIILLEE           View a file                   FF1199(v)
     PPAACCKK_FFIILLEE           Pack a file                   FF2200(p)
     LLOOGG_TTRREEEE            Change directory with tree    LL
     CCOOPPYY_TTRREEEE           Copy a file with tree         CC
     MMOOVVEE_TTRREEEE           Move a file with tree         MM
     UUNNPPAACCKK_TTRREEEE         Unpack a file with tree       UU
     FFIINNDD_DDIIRR            Find a file recursively       FF
     AATTTTRR_DDIIRR            Change attributes recursively AA
     SSYYMMLLIINNKK_MMOODDEE        Switch the symbolic link mode SS
     FFIILLEETTYYPPEE_MMOODDEE       Switch the file type symbol   TT
     DDOOTTFFIILLEE_MMOODDEE        Switch the dot file display   HH
     FFIILLEEFFLLGG_MMOODDEE        Switch the file flag display  OO
     LLAAUUNNCCHH_FFIILLEE         Invoke the launcher           RReettuurrnn
     SSEEAARRCCHH_FFOORRWW         Search forward a file         ^^SS
     SSEEAARRCCHH_BBAACCKK         Search backward a file        ^^RR
     SSPPLLIITT_WWIINNDDOOWW        Split into the windows        //
     NNEEXXTT_WWIINNDDOOWW         Change to the next window     ^^
     WWIIDDEENN_WWIINNDDOOWW        Widen the current window      WW
     NNAARRRROOWW_WWIINNDDOOWW       Narrow the current window     NN
     KKIILLLL_WWIINNDDOOWW         Kill the current window       KK
     EEDDIITT_CCOONNFFIIGG         Invoke the customizer         EE
     HHEELLPP_MMEESSSSAAGGEE        Display a help screen         ??
     QQUUIITT_SSYYSSTTEEMM         Quit from fd                  EEsscc(q)

     WWAARRNNIINNGG_BBEELLLL        Bell for warning
     NNOO_OOPPEERRAATTIIOONN        Do nothing

     The last 2 internal commands are used when you want change
     the default key binding to cancel.

     IInntteerrnnaall CCoommmmaannddss DDeessccrriippttiioonn
     The detail of each internal command is the following.
     Internal commands with similar function are described
     together.

        MMoovvee ccuurrssoorr
             Move a cursor.

        TTuurrnn ppaaggee
             Turn to the previous/next page, when files are not
             completely held in a screen.  Also if you try to
             move out of the page with Cursor move, the page will
             be turned.

        MMoovvee ttoo tthhee ttoopp//bboottttoomm
             Move a cursor to the top/bottom of the file list.
             When the list is not held in a screen, the page is
             turned.

        SShhiifftt ffiilleennaammee
             Shift the displayed string of filename on the cursor
             position, when the filename is longer than the
             prepared column width.  It is displayed as shifted
             to right/left by 1 character.  The display of the
             status line is also shifted simultaneously.

        CChhaannggee llaayyoouutt
             Change the number of columns into each value.  There
             are usually 22 columns per screen.  As the column
             width per file is changed according to the number of
             columns, the displayed information is also changed.

        MMaarrkk ffiillee
             Mark the file on the cursor position.  You cannot
             mark any directory.  [SSppaaccee] marks and moves down a
             cursor.  [^^SSppaaccee] also marks and moves down a cur-
             sor, but doesn't turn the page.  [HHoommee] marks all
             the files, [EEnndd] marks all the files reversely.  [**]
             additionally marks the file which matches the wild-
             card.  You must input the wildcard string whenever
             you push [**].

             Marked files are used as the target of AATTTTRR_FFIILLEE,
             CCOOPPYY_FFIILLEE, DDEELLEETTEE_FFIILLEE, MMOOVVEE_FFIILLEE, UUNNPPAACCKK_FFIILLEE and
             the user defined command macros.

        CChhaannggee ddiirreeccttoorryy
             [RReettuurrnn] changes the current directory to the direc-
             tory on the cursor position.  If you want to change
             it to the parent directory, you should move a cursor
             to the file of ".." and push [RReettuurrnn], or simply
             push [BBss].  [\\] changes the current directory to the
             root directory.

        PPuusshh//ppoopp ffiillee ssttaacckk
             [DDeell] pushes the file on the cursor position to the
             file stack, and temporarily deletes the file from
             the file list screen.  You can push files to the
             file stack up to 55 files.

             [IInnss] pops the file from the file stack and insert
             it on the cursor position.  The last pushed file is
             popped first.  But this order is expediently
             displayed in ffdd, and it is reset by Directory move.

        RReeddrraaww ssccrreeeenn
             Redraw the file list screen by rereading the infor-
             mation of the current directory.  It is useful when
             some other process add/delete files, or when some-
             thing break the screen display.

             Moreover, when you use the terminal which doesn't
             raise SSIIGGWWIINNCCHH signal at changing the screen size
             (like kktteerrmm(1) on HP-UX etc.), you must intention-
             ally redraw after you change the screen size.

        CChhaannggee llooggiiccaall ddiirreeccttoorryy (Logdir)
             Change the current directory to the inputted path-
             name.  When you input the pathname which starts with
             '/', it means not the relative move but the absolute
             move.

             When you input the pathname "..", the pathname of the
             current directory is adjusted into absolute expres-
             sion.  Except this case, the current directory
             always is shown as the virtual pathname, by reason
             of a link and so on.  When you input the pathname
             "??", you can move to the current directory when ffdd
             was invoked.  When you input the pathname "--", you
             can move to the last visited directory.

             Moreover, When you input the pathname "@@" in floppy
             drive, you can move to the directory on UNIX file
             system, where you existed before moving to floppy
             drive.  ((UUNNIIXX))

             (Note: This command is called as "Loddsk" in the
             original FD on MS-DOS, which is short for "LOGical
             DiSK drive".  This "logical" means the drive name
             prefixed to pathnames, and it is virtually named
             against "physical disk drive".  On UNIX, since "log-
             ical disk drive" never means pathname nor directory,
             this command name "Change logical directory" is not
             suitable.  But this name is expediently inherited
             from the original version.)

        EExxeeccuuttee ffiillee (eXec)
             Execute the file on the cursor position with some
             parameters, as the child process.  The cursor posi-
             tion in command line exists after the filename in
             case of the executable file, and before the filename
             except it.  You should fill suitable parameters or
             command name in each case.  The up/down cursor keys
             can provide the command history which you executed
             before.

             On MS-DOS version, the LFN form filename in the com-
             mand line which is quoted with the quotation mark ""
             is automatically replaced into 8+3 form filename
             before execution.  In this case, when there is the
             filename described by the string quoted with "", this
             string is always replaced into 8+3 form filename
             after deleting "", otherwise it is never replaced
             including "".

        CCooppyy ffiillee (Copy)
             Copy the file on the cursor position to the speci-
             fied directory.  When the cursor position indicates
             a directory, its contents are copied recursively.
             When some files are marked, the target is not the
             file on the cursor position but the marked files.

             When the same named file exists in the destination,
             you can select the operation from the following:
             "Update (by timestamp)", "Rename (each copied
             file)", "Overwrite", "Not_copy_the_same_name", "For-
             ward".  If you select "Forward", you should specify
             the directory as the destination to forward.  All
             files which have the same names are moved to the
             specified directory.

        DDeelleettee ffiillee (Delete)
             Delete the file on the cursor position.  No direc-
             tory can be deleted.  When some files are marked,
             the target is not the file on the cursor position
             but the marked files.

             When you don't have write permission on the file,
             you are confirmed for security.

        RReennaammee ffiillee (Rename)
             Rename the file on the cursor position.  You cannot
             rename to the same name as any existent file.  When
             you specify the pathname with some directory name,
             it is also moved to the directory.

        SSoorrtt ffiillee (Sort)
             Sort files in the current directory.  You can select
             the sorted type from the following: "fileName",
             "Extension", "Size", "Timestamp", "Length (of
             filename)", and specify "Up (incremental order)" or
             "Down (decremental order)".  When the sorted type
             before sorting is the one except "No chg (not
             sort)", the choice will include "No chg".  When you
             sort after sorting another sorted type, the previous
             sorted result is based in sorting.  This sorting has
             a priority except specified type, the directory is
             always precedes any file, except for the case of "No
             chg".  In case of "Length", files which have the
             same filename length are sorted in order of their
             names.

             But this sorting is expediently displayed in ffdd, and
             it is reset by Directory move.

        FFiinndd ffiillee (Find)
             Find the files matching the wildcard, and display
             only them.  The filename which starts with '.'
             doesn't match the wildcard which starts with '*' nor
             '?'.  If you want to cancel the File find, you
             should move the current directory, or do FFIINNDD_FFIILLEE
             again and input a null line.

             When the current directory has the files which have
             the extension registered to associate with an
             archive browser, the string which starts with '/' is
             used to find not the filename but the filename in
             archive files, and only the archive files which con-
             tain matched files are displayed.  This function is
             available in the archive browser.

             After Find file, you can not do WWRRIITTEE_DDIIRR.

        DDiissppllaayy ttrreeee ssccrreeeenn (Tree)
             Display the directory tree based on the current
             directory.  You can select the directory in the tree
             screen, to move the current directory.

        EEddiitt ffiillee (Editor)
             Edit the file on the cursor position.  The editor is
             used referring EEDDIITTOORR the internal variable, or
             referring EEDDIITTOORR the environment variable when the
             internal variable is undefined.

        UUnnppaacckk ffiillee (Unpack)
             Unpack the archive file on the cursor position into
             the specified directory.  In builtin configuration,
             you can unpack only the tar file and its compressed
             file and the LHa compressed file.  You can describe
             configurations in the initial configuration file to
             support archivers except these.

        CChhaannggee aattttrriibbuuttee (Attr)
             Change the file access mode, the timestamp and the
             owner/group of the file on the cursor position.
             When some files are marked, the target is not the
             file on the cursor position but the marked files.
             In case of the marked files, you must select the
             mode, the timestamp or the owner/group, before chang-
             ing it all together.

             When you input the mode, cursor keys move a cursor
             to the position you want to change, [SSppaaccee] reverses
             the attribute on the position.  You should notice
             that the attribute of the execution bit is not a
             binary toggle but a triple toggle, which includes
             setuid bit, setgid bit and sticky bit respectively.
             If the target is the marked files, [mm](Mask) will
             mask a bit on the cursor position with '**', to keep
             the value of the original file attribute.  When you
             input the timestamp, you move a cursor to the posi-
             tion you want to change, and input a numeric value.
             When you input the owner/group, you move a cursor to
             the position for each name, and input a name or a ID
             value with [SSppaaccee].  You can use the completion for
             a user name and a group name to input each name.  Fi-
             nally, [RReettuurrnn] executes the change.  You can cancel
             with [EEsscc].  Be careful that the limit check of date
             is not perfect.

             Moreover, [aa](Attr), [dd](Date), [tt](Time),
             [oo](Owner) and [gg](Group) move a cursor to the each
             beginning of input line.

             On the OS which has the attribute of file flags, you
             can change the file flags as well as the mode.  In
             this case, [ff](Flag) move a cursor to the begin-
             ning of input line of file flags.  But the value of
             flags which you can change is based on your permis-
             sion.

        FFiillee ssyysstteemm iinnffoorrmmaattiioonn (Info)
             Display the information of the specified file sys-
             tem.  When the inputted pathname is not the special
             file which indicates a file system, the information
             of the file system including the pathname is
             displayed.

        MMoovvee ffiillee (Move)
             Move the file on the cursor position to the speci-
             fied directory.  When the cursor position indicates
             a directory, the directory itself is moved.  When
             some files are marked, the target is not the file on
             the cursor position but the marked files.

             When the same named file exists in the destination,
             you can select the operation as well as CCOOPPYY_FFIILLEE.
             When the destination belongs to the different file
             system, copy and delete are just executed continu-
             ously.

        DDeelleettee ddiirreeccttoorryy (rmDir)
             Delete the directory on the cursor position recur-
             sively.  When the directory in a symbolic link, only
             the link is deleted and the linked directory has no
             effect.

        MMaakkee ddiirreeccttoorryy (mKdir)
             Make the sub directory on the current directory.
             When the inputted sub directory string includes '/',
             which is the pathname delimiter, it goes on making
             directory recursively until the directory described
             by the string is finally created.

             When you input the pathname which starts with '/',
             the directory is made not on the current directory
             but on the absolute path described.

        EExxeeccuuttee cchhiilldd pprroocceessss (sHell)
             Execute the inputted command string as the child
             process, by handling the internal shell.  You can
             refer the command history and use automatic LFN
             replacement, as well as EEXXEECCUUTTEE_FFIILLEE.  When you push
             only [RReettuurrnn] without any input, the user shell
             which is described by SSHHEELLLL the internal variable or
             the environment variable is invoked.  In this case,
             you should input "eexxiitt" to return to ffdd.  When the
             value of SSHHEELLLL is ffddsshh, the internal shell is exe-
             cuted as the interactive shell.

             However, when there is the same command name as a
             builtin command or a internal command, the builtin
             command or the internal command are executed instead
             of the external command.  You can refer the clause
             of `BBuuiillttiinn CCoommmmaannddss' for the details of the builtin
             command.

        WWrriittee ddiirreeccttoorryy (Write)
             Write the displayed directory.  The gap between
             files on the directory entry is filled.  When it is
             executed after arranged by PPUUSSHH_FFIILLEE, PPOOPP_FFIILLEE and
             SSOORRTT_DDIIRR, the result is written.

             When the displayed directory doesn't belong to the
             hierarchy under your home directory, you are con-
             firmed for security whether if any other user
             doesn't use the directory.  Since it is insecure,
             you cannot write the NFS mounted directory and some
             special directories.

             If you execute the internal command which arranges
             the file order, and then try to execute the internal
             command which will break that order, you will be
             confirmed whether if you write the directory or not,
             just before the internal command is executed.  For
             this function, you can write the directory without
             intentionally executing this Directory write com-
             mand.  But when the displayed directory is not under
             your home directory, this confirmation is not done.

        BBaacckkuupp ttaappee (Backup)
             Backup the file on the cursor position into the
             specified storage device.  When the cursor position
             indicates a directory, all of its contents is back-
             uped.  When some files are marked, the target is not
             the file on the cursor position but the marked files.

             TTaarr(1) is used for backup.  When you specify the
             filename except special files indicates devices as
             input of the device name, the archive file is
             created with that filename.

        VViieeww ffiillee (View)
             View the file on the cursor position.  The pager is
             used referring PPAAGGEERR the internal variable, or
             referring PPAAGGEERR the environment variable when the
             internal variable is undefined.

        PPaacckk ffiillee (Pack)
             Pack the file on the cursor position into the speci-
             fied archive file.  When the cursor position indi-
             cates a directory, all of its contents is packed
             into the archive file.  When some files are marked,
             the target is not the file on the cursor position
             but the marked files.

             According to the extension of the inputted archive
             file, the associated archiver is automatically
             selected.  In builtin configuration, you can pack
             only the tar file and its compressed file and the
             LHa compressed file.  You can describe configura-
             tions in the initial configuration file to support
             archivers except these.

             When you use ttaarr(1), you may sometimes be unable to
             pack a lot of files at once, because of the maximum
             parameter length which can be given at once.  In
             those case, you can create the archive file with
             BBAACCKKUUPP_TTAAPPEE.

        OOppeerraattiioonnss wwiitthh ttrreeee
             [LL], [CC], [MM] and [UU] can make you select the path-
             name from the directory tree instead of the string
             input.  They execute the internal command equivalent
             to LLOOGG_DDIIRR, CCOOPPYY_FFIILLEE, MMOOVVEE_FFIILLEE and UUNNPPAACCKK_FFIILLEE,
             respectively.

        FFiinndd ffiillee rreeccuurrssiivveellyy
             Find the file matching the wildcard recursively
             under the current directory, and move the directory
             where the found file exists.  When the cursor posi-
             tion indicates a directory, it find the file under
             the directory on the cursor position instead of the
             current directory.

             You will be confirmed for each matching file whether
             if you move or not, and you can select [nn](No)
             unless the target file is displayed.

        CChhaannggee aattttrriibbuutteess rreeccuurrssiivveellyy
             Change attributes the directory on the cursor posi-
             tion revursively.  As well as changing attributes of
             the marked files, you must select the mode, the time-
             stamp or the owner/group, before changing it all to-
             gether with each file under the directory.

             When you input the mode, you should notice that the
             attribute of the execution bit, in this case, is not
             a triple toggle but a 5-states toggle, which in-
             cludes 'XX' and '!!'.  'XX' means setting the bit only
             if the object is a directory or some execution bits
             are set.  '!!' also means unsetting the bit only if
             the object is a directory or some execution bits are
             set.  [mm](Mask) will mask a bit on the cursor posi-
             tion with '**', to keep the value of the original
             file attribute.

        IInnvvookkee llaauunncchheerr
             [RReettuurrnn] executes the operation according to the
             extension of the file on the cursor position, unless
             the cursor position indicates a directory.  In buil-
             tin configuration, the archive browser is registered
             with the tar file and its compressed file and the
             LHa compressed file.  You can describe configura-
             tions in the initial configuration file to register
             launchers except these.

             When the file on the cursor position has the unre-
             gistered extension, it will behave as same as
             VVIIEEWW_FFIILLEE.  In the archive browser, the registered
             launcher is available, so that you can invoke the
             archive browser recursively.

        SSwwiittcchh ssyymmbboolliicc lliinnkk mmooddee
             In case of the symbolic link file, the file informa-
             tion displayed in the file column and the status
             line shows not the status of its referential file
             but the status of the link itself.  It switches to
             show the status of the referential file.  ((UUNNIIXX))

             In the mode of showing the status of the referential
             file, 'SS'(Symbolic Link) is displayed on the left
             end of the function line.

        SSwwiittcchh ffiillee ttyyppee ssyymmbbooll mmooddee
             Switch to display the symbol which means the file
             type after the filename in the file list, like as
             the display in --FF option of llss(1).  It is toggle to
             switch if display the symbol or not.  The each sym-
             bol means the following.
                  //    directory
                  @@    symbolic link
                  **    executable file
                  ==    socket
                  ||    FIFO

                  (MS-DOS version and the floppy drive)
                  //    directory
                  **    executable file
                  ==    system file
                  ||    label

             In the mode of displaying the file type symbol,
             'TT'(Type) is displayed on the left end of the func-
             tion line.

        SSwwiittcchh ddoott ffiillee ddiissppllaayy mmooddee
             Switch not to display the file whose filename starts
             with '.' in the file list.  It is toggle to switch
             if display the dot file or not.

             In the mode of not displaying the dot file,
             'HH'(Hidden) is displayed on the left end of the
             function line.

        SSwwiittcchh ffiillee ffllaagg ddiissppllaayy mmooddee
             Switch to display the file flag, which exists in
             some OS, instead of the file mode on each file.  It
             is toggle to switch if display the file flag or the
             file mode.  This is not available on any OS without
             the file flag.  The each symbol means the following
             respectively.  ((UUNNIIXX))
                  AA    Archived
                  NN    Nodump
                  aa    system Append-only
                  cc    system unChangeable (immutable)
                  uu    system Undeletable
                  aa    user Append-only
                  cc    user unChangeable (immutable)
                  uu    user Undeletable

             In the mode of displaying the file flag, 'FF'(Flags)
             is displayed on the left end of the function line.

        SSeeaarrcchh ffiillee
             Search the current directory incrementally for the
             filename, with moving a cursor.  When you execute
             this command, to switch to the search mode, a prompt
             appears in the function line.  You can input the
             filename in this prompt, and a cursor will move to
             the filename matching the string which is already
             inputted at that present.  [EEsscc] switches to the
             normal mode.

        SSpplliitt wwiinnddooww
             Split the current window.  When you split a window
             in the normal non-split window mode, it will be the
             split window mode in which the screen is split into
             2 windows vertically.  In the split window mode, you
             can operate works individually on each window.  When
             you split a window in the split window mode, the
             current working window is split into 2 windows ver-
             tically.  You can make split windows up to 55.

        CChhaannggee wwiinnddooww
             Change effective window to the next in the split
             window mode.  When the current window is the last,
             the first window will be effective.  In the non-
             split window mode, it is ineffective.

        WWiiddeenn wwiinnddooww
             Widen the current window size in the split window
             mode, to narrow the next window size.  When the cur-
             rent window is the last, the first window size will
             be narrowed.  In the non-split window mode, it is
             ineffective.

        NNaarrrrooww wwiinnddooww
             Narrow the current window size in the split window
             mode, to widen the next window size.  When the cur-
             rent window is the last, the first window size will
             be widened.  In the non-split window mode, it is
             ineffective.

        KKiillll wwiinnddooww
             Kill the current window in the split window mode, to
             join it to the previous window.  When the current
             window is the first, it will be joined to the last
             window.  If the result number of windows is one, it
             will be the non-split window mode.  In the non-split
             window mode, it is ineffective.

        IInnvvookkee ccuussttoommiizzeerr
             Invoke the customizer which interactively changes
             the configurations to be set up by the internal
             variable and the builtin command.  While the confi-
             gurations which is set up here is reflected immedi-
             ately, you must intentionally save configurations in
             the customizer if you want to reflect in the initial
             configuration file.

        DDiissppllaayy hheellpp
             Display the list of the current key bindings and
             their command descriptions.  When the list is not
             completely held in a screen, it prompts for every
             screen.

             In case of the circulated executable binary file,
             this screen shows the E-mail address of the circula-
             tion manager in the function line.  Please contact
             here when something will happen.

        QQuuiitt (Quit)
             Quit from ffdd.

     CCoommmmaannddss
     In EEXXEECCUUTTEE_SSHH and the initial configuration file, you can
     use the internal commands described above and the builtin
     commands described below, as well as the external commands.
     With these commands, a pipeline can consist of one or more
     commands separated by || or ||&&.  || connects the standard out-
     put of the previous command to the standard input of the
     next command.  ||&& connects both the standard output and the
     standard error output of the previous command to the stan-
     dard input of the next command.  The exit status of a pipe-
     line is the exit status of the last command.  You can start
     a pipeline with !!, then the exit status of a pipeline will
     be the logical NOT of the exit status of the last command.
     Moreover, a command list can consist of one or more pipe-
     lines separated by ;;, &&, &&||, &&&&, ||||.  This command list can
     end with ;;, && or &&||.  These separators mean the following.
        ;;    Execute commands sequentially.
        &&    Execute commands synchronously, not waiting for the
             preceding pipeline to finish.  ((UUNNIIXX))
        &&||   Same as &&, except to immediately ddiissoowwnn the job.
             ((UUNNIIXX))
        &&&&   Execute the following pipeline only if the preceding
             pipeline returns a 00 exit status.
        ||||   Execute the following pipeline only if the preceding
             pipeline returns a non-00 exit status.
     In these command lists, a newline means as same as ;;.

     The input/output of each command in the command list can be
     redirected with the following redirectees.  These
     redirectees can be placed on any position in the command
     string.
        _n<<_f_i_l_e    Redirect the input indicated by the file
                  descriptor _n into the input from _f_i_l_e.  If _n is
                  omitted, it is regarded as the standard input
                  is specified.
        _n>>_f_i_l_e    Redirect the output indicated by the file
                  descriptor _n into the output to _f_i_l_e.  If _n is
                  omitted, it is regarded as the standard output
                  is specified.  If _f_i_l_e doesn't exist it is
                  created, otherwise it is truncated to 0 length
                  before output.
        _n>>||_f_i_l_e   Same as >>, except to force to overwrite
                  existent files even if --CC option is set by sseett
                  the builtin command.
        _n>>>>_f_i_l_e   Redirect the output indicated by the file
                  descriptor _n into the output to _f_i_l_e.  If _n is
                  omitted, it is regarded as the standard output
                  is specified.  If _f_i_l_e doesn't exist it is
                  created, otherwise output is appended to it.
        _n_1<<&&_n_2    Redirect the input indicated by the file
                  descriptor _n_1 into the input indicated by the
                  file descriptor _n_2.  If _n_1 is omitted, it is
                  regarded as the standard input is specified.
        _n_1>>&&_n_2    Redirect the output indicated by the file
                  descriptor _n_1 into the output indicated by the
                  file descriptor _n_2.  If _n_1 is omitted, it is
                  regarded as the standard output is specified.
        &&>>_f_i_l_e    Redirect both the standard output and the stan-
                  dard error output into the output to _f_i_l_e.  If
                  _f_i_l_e doesn't exist it is created, otherwise it
                  is truncated to 0 length before output.
        &&>>||_f_i_l_e   Same as &&>>, except to force to overwrite
                  existent files even if --CC option is set by sseett
                  the builtin command.
        &&>>>>_f_i_l_e   Redirect both the standard output and the stan-
                  dard error output into the output to _f_i_l_e.  If
                  _f_i_l_e doesn't exist it is created, otherwise
                  output is appended to it.
        _n<<>>_f_i_l_e   Redirect both the input/output indicated by the
                  file descriptor _n into the input/output from/to
                  _f_i_l_e.  If _n is omitted, it is regarded as the
                  standard input is specified.
        _n>><<_f_i_l_e   Redirect both the input/output indicated by the
                  file descriptor _n into the input/output from/to
                  _f_i_l_e.  If _n is omitted, it is regarded as the
                  standard output is specified.
        _n_1<<>>&&_n_2   Redirect both the input/output indicated by the
                  file descriptor _n_1 into the input/output indi-
                  cated by the file descriptor _n_2.  If _n_1 is omit-
                  ted, it is regarded as the standard input is
                  specified.
        _n_1>><<&&_n_2   Redirect both the input/output indicated by the
                  file descriptor _n_1 into the input/output indi-
                  cated by the file descriptor _n_2.  If _n_1 is omit-
                  ted, it is regarded as the standard output is
                  specified.
        _n<<--
        _n<<&&--      Close the input indicated by the file descrip-
                  tor _n.  If _n is omitted, it is regarded as the
                  standard input is specified.
        _n>>--
        _n>>&&--      Close the output indicated by the file descrip-
                  tor _n.  If _n is omitted, it is regarded as the
                  standard output is specified.
        _n<<>>--
        _n<<>>&&--     Close both the input/output indicated by the
                  file descriptor _n.  If _n is omitted, it is re-
                  garded as the standard input is specified.
        _n>><<--
        _n>><<&&--     Close both the input/output indicated by the
                  file descriptor _n.  If _n is omitted, it is re-
                  garded as the standard output is specified.
        _n<<<<[--]_w_o_r_d
                  Redirect the input indicated by the file
                  descriptor _n into the input which is read up to
                  a input line as same as _w_o_r_d, or to an end of
                  file.  If any part of _w_o_r_d is quoted, no input
                  line is evaluated.  Otherwise, each input line
                  is evaluated to expand variables or replace
                  strings.  When you specify --, all tabs on the
                  beginning of input lines is stripped to be send
                  to a command.  If _n is omitted, it is regarded
                  as the standard input is specified.

     When you specify the file with each redirect, you can de-
     scribe the filename as `_s_c_h_e_m_e::////_h_o_s_t::_p_o_r_t' form to open the
     following TCP sockets, according to the string of _s_c_h_e_m_e.
     The authentication of your OS will restrict specifying the
     accepting port.  ((UUNNIIXX))
        ccoonnnneecctt::////_h_o_s_t::_p_o_r_t
                  This socket is connected to the remote host
                  specified by _h_o_s_t with the TCP port number spec-
                  ified by _p_o_r_t.
        aacccceepptt::////[_h_o_s_t][::_p_o_r_t]
                  This socket is accepted to the local host spec-
                  ified by _h_o_s_t with the TCP port number specifi-
                  ed by _p_o_r_t.  If _h_o_s_t is omitted, this socket
                  will be accepted to any host.  If _p_o_r_t is omit-
                  ted, the port within the range determined by
                  the OS is used.
        bbiinndd::////[_h_o_s_t][::_p_o_r_t]
                  This socket is bound to the local host specifi-
                  ed by _h_o_s_t with the TCP port number specified
                  by _p_o_r_t, preparing aacccceepptt the builtin command.
                  If _h_o_s_t is omitted, this socket will be accept-
                  ed to any host.  If _p_o_r_t is omitted, the port
                  within the range determined by the OS is used.

     On each command line, the string from '##' to the end of line
     and a null line are ignored.  When the line ends with '\\',
     it is referred as continuing into the next line, so that you
     can split a long line with this.

     BBuuiillttiinn CCoommmmaannddss
     FFdd has the following builtin commands.  These builtin com-
     mands can be used in EEXXEECCUUTTEE_SSHH and the initial configura-
     tion file.

     iiff _l_i_s_t tthheenn [eelliiff _l_i_s_t tthheenn _l_i_s_t] ... [eellssee _l_i_s_t] ffii
                   The _l_i_s_t of iiff clause and eelliiff clauses are
                   executed in order, and if each exit status is
                   a 0, then the _l_i_s_t of tthheenn clause associated
                   with it is executed and the eelliiff clauses after
                   it are ignored.  If no _l_i_s_t of iiff clause nor
                   eelliiff clauses return a 0, the _l_i_s_t of eellssee
                   clause is executed.  If no _l_i_s_t of tthheenn
                   clauses nor eellssee clause is executed, then iiff
                   returns a 00 exit status.

     wwhhiillee _l_i_s_t ddoo _l_i_s_t ddoonnee
                   The _l_i_s_t of wwhhiillee clause is executed repeat-
                   edly, and while its exit status is 0, the _l_i_s_t
                   of ddoo clause is executed repeatedly.  If the
                   _l_i_s_t of ddoo clause is never executed, then
                   wwhhiillee returns a 00 exit status.

     uunnttiill _l_i_s_t ddoo _l_i_s_t ddoonnee
                   The _l_i_s_t of uunnttiill clause is executed repeat-
                   edly, and while its exit status is NOT 0, the
                   _l_i_s_t of ddoo clause is executed repeatedly.  If
                   the _l_i_s_t of ddoo clause is never executed, then
                   uunnttiill returns a 00 exit status.

     ffoorr _N_A_M_E [iinn _v_a_l_u_e ...] ddoo _l_i_s_t ddoonnee
                   _N_A_M_E the internal variable is substituted for
                   values of _v_a_l_u_e one by one, and _l_i_s_t is exe-
                   cuted according to the each value.  If iinn
                   _v_a_l_u_e is omitted, then each positional
                   parameter is substituted one by one.

     ccaassee _w_o_r_d iinn [_p_a_t_t_e_r_n [|| _p_a_t_t_e_r_n] ... )) _l_i_s_t ;;;;] ... eessaacc
                   The string _w_o_r_d is compared with the each _p_a_t_-
                   _t_e_r_n, _l_i_s_t associated with the _p_a_t_t_e_r_n which
                   first matches it is executed.

     ((_l_i_s_t))        Execute _l_i_s_t in a sub shell.

     {{ _l_i_s_t;; }}     Execute _l_i_s_t in the current shell.

     _N_A_M_E==[_v_a_l_u_e] [_c_o_m ...]
                   Define a internal variable which is available
                   only in ffdd.  It substitutes the value (string)
                   _v_a_l_u_e for _N_A_M_E the internal variable.  When
                   you describe the command _c_o_m after the defini-
                   tion of a variable, _c_o_m is executed on the
                   state where this variable is regarded as the
                   environment variable.  In this case, the
                   definition of _N_A_M_E is not remain as the
                   environment variable nor the internal vari-
                   able.

                   If _v_a_l_u_e is omitted, the value of _N_A_M_E the
                   internal variable is defined as a null.  If
                   you want to delete the definition of a inter-
                   nal variable, use uunnsseett the builtin command.

     _n_a_m_e(()) {{ _l_i_s_t; }}
                   Define a function whose body is _l_i_s_t, as the
                   name of _n_a_m_e.  The defined function can be
                   used in the command line of EEXXEECCUUTTEE_SSHH and
                   each command macro described below.  You can
                   use the positional parameter $$_n in each
                   description of _l_i_s_t, which indicates the argu-
                   ment when the function is invoked.  $$00 is _n_a_m_e
                   itself, and $$11-$$99 indicates each argument.

                   Although you cannot omit {{ }} and _l_i_s_t, you can
                   omit {{ }} before/after _l_i_s_t which consists of a
                   single command.  If you want to delete the
                   definition of a function, use uunnsseett the buil-
                   tin command.

     !!_n_u_m          Execute the command which has the history
                   number specified with the numeric value _n_u_m.
                   When _n_u_m is negative value, it executes the
                   command which has the history number as the
                   current history number minus _n_u_m.

     !!!!            Execute the previous command.  This is synonym
                   for !!--11.

     !!_s_t_r          Execute the command history which starts with
                   the string _s_t_r.

     :: [_a_r_g ...]   No effect.  But it evaluates _a_r_g and performs
                   redirection.

     .. _f_i_l_e
     ssoouurrccee _f_i_l_e   Read and evaluate commands from _f_i_l_e.  _F_i_l_e
                   must exists on the directory which PPAATTHH
                   includes, or be described with pathname.  The
                   each line format is based on the format of
                   EEXXEECCUUTTEE_SSHH.  You can describe this in the file
                   as nesting.

     aacccceepptt [_f_d]   Accept the connection with the file descriptor
                   indicated by _f_d, and the connected socket will
                   be assign to _f_d of the same file descriptor.
                   At the same time, the accepted socket will be
                   closed.  When fd is not the redirection as the
                   form of bbiinndd::////, this command will be failed.
                   In comparison with the redirection as the form
                   of aacccceepptt::////, the shell can receive controls
                   before establishing connection to negotiate
                   the TCP port number with the remote host in ad-
                   vance.  ((UUNNIIXX))

                   If _f_d is omitted, the connection will be ac-
                   cepted with the standard input.

     aaddddccrr [--11] [_f_i_l_e]
                   Output the string read from the file specified
                   by _f_i_l_e, line by line.  The newline of each
                   line is unified into CR-NL (\r\n).  It is use-
                   ful to pipe the output to some socket.

                   If _f_i_l_e is omitted, it is regarded as the stan-
                   dard input is specified.  If --11 is specified,
                   it will output just 1 line and exit.

     aalliiaass [_n_a_m_e[==_c_o_m]]
                   Define a alias whose body is _c_o_m, as the name
                   of _n_a_m_e.  The defined alias can be used in the
                   command line of EEXXEECCUUTTEE_SSHH and each command
                   macro described below.  The alias substitution
                   is performed recursively.

                   If _c_o_m is omitted, the alias of _n_a_m_e is
                   displayed.  If both _c_o_m and _n_a_m_e are omitted,
                   all the current alias definition list is
                   displayed.

     aarrcchh _e_x_t [_p_a_c_k _u_n_p_a_c_k]
                   Register the archiver command associated with
                   the archive file which has _e_x_t the extension.
                   The pack command is specified as _p_a_c_k, and the
                   unpack command is specified as _u_n_p_a_c_k, using
                   the macro representation quoted with "".  When
                   _e_x_t starts with //, uppercase/lowercase is
                   ignored in the comparison of any extension.

                   If both _p_a_c_k and _u_n_p_a_c_k are omitted, the
                   archiver command registration for _e_x_t the
                   extension is deleted.

     bbgg [_j_o_b]      Continue the execution of the job specified
                   with _j_o_b in the background.  The following
                   format is available to specify a job.  ((UUNNIIXX))
                         %%
                         %%++   the current job
                         %%--   the previous job
                         %%_n   the job with job number _n
                         %%_s_t_r the job whose command line starts with _s_t_r
                   But, you must describe these %% in the command
                   line of EEXXEECCUUTTEE_SSHH as the duplicated expres-
                   sion, such as %%%%, for the reason of the param-
                   eter macro function described below.

                   If _j_o_b is omitted, the current job is contin-
                   ued in the background.

     bbiinndd _c [_c_o_m_1 [_c_o_m_2] [::_c_o_m_m_e_n_t]]
                   Bind the command _c_o_m_1 to the key _c.  When you
                   want to specify a control character for _c, you
                   can prefix ^^ into 2 characters, such as ^A.
                   When you want to specify a character with the
                   META key (or the ALT key on MS-DOS version),
                   you can prefix @@ into 2 characters, such as
                   @a.  When you want to specify a function key
                   and a special key, you can use each identifier
                   described in kkeeyymmaapp command after, such as
                   F10.  Or you can describe the escape sequence,
                   such as \\nn and \\ee, and the octal expression,
                   such as \\oooooo.

                   In case of binding the internal command of ffdd,
                   you can the command identifier as it is.  When
                   you want to define the internal command with
                   some arguments or define the command in the
                   macro representation, you should describe the
                   string quoted with "".  If _c_o_m_2 is not omitted,
                   _c_o_m_2 is executed when the cursor position
                   indicates a directory.  When the key _c is the
                   function key of F1-F20, if you describe _c_o_m_-
                   _m_e_n_t prefixed with :: trailing the command
                   description, you can change the display of
                   associated part in the function line into _c_o_m_-
                   _m_e_n_t.

                   However, note that, with the key binding for
                   the control key, the configuration in the edit
                   mode described below is prior to the key bind-
                   ing.

                   If both _c_o_m_1 and _c_o_m_2 are omitted, the regis-
                   tration of key binding for the key _c is
                   deleted.

     bbrreeaakk [_n]     Exit from the loop, it is used in the ffoorr
                   statement and so on.  If _n is specified, it
                   breaks _n levels from the loop.

     bbrroowwssee [--@@ _f_i_l_e]
     bbrroowwssee _c_o_m [--ffttbbiiee _a_r_g] [--pp _c_o_m_2] [--ddnn {nnoopprreepp,lloooopp}] ...
                   Execute _c_o_m the command, and invoke the
                   archive browser who receives its output.  You
                   should the macro representation quoted with ""
                   as _c_o_m.  --ff, --tt, --bb, --ii and --ee options are the
                   same as the one for llaauunncchh the builtin com-
                   mand.  In case that multiple _c_o_ms are
                   specified, the next _c_o_m the command is exe-
                   cuted one after another when you select each
                   files in the archive browser, and the formats
                   and patterns described after each _c_o_m the com-
                   mand are adopted.  In order to return to the
                   previous level of archive browser, you should
                   select the file named as .... or push the key
                   [BBss].  Or you can use QQUUIITT_SSYYSSTTEEMM the command
                   to escape from all of the archive browsers
                   invoked by bbrroowwssee.  You must describe --ff
                   option, except for the last _c_o_m the command.
                   When the last _c_o_m has no --ff option, the com-
                   mand has been just executed instead of invok-
                   ing an archive browser, and then will return
                   to the previous archive browser when it is
                   done.

                   When you specify --pp option, the execution of
                   _c_o_m_2 the command precedes the execution of the
                   next _c_o_m the command when you select a file.
                   While _c_o_m is executed in the sub shell for a
                   pipeline, _c_o_m_2 is executed in the current
                   shell to inherit the values of internal vari-
                   ables set in this command after _c_o_m_2 has been
                   done.  The filenames which is selected toward
                   this level of archive browser are held in
                   positional parameters sequentially, and the
                   last selected filename is held in $$11.  These
                   parameters will be newly set whenever you
                   select a file, so that they are reset in
                   sequential order when you select the next file
                   even if you replace them with sseett or sshhiifftt the
                   builtin command.  --dd and --nn options specify a
                   control if the selected file is a directory or
                   not respectively.  When you specify nnoopprreepp,
                   _c_o_m_2 specified by --pp option is not executed.
                   When you specify lloooopp, you don't step the next
                   _c_o_m the command but the same _c_o_m the command
                   again.

                   And when you think troublesome to describe too
                   many arguments for bbrroowwssee, you can specify
                   _f_i_l_e the file in which some arguments are
                   described with --@@ option.  You can describe --@@
                   option in any place of arguments, the argu-
                   ments described in _f_i_l_e are inserted in the
                   place where --@@ is described.  If you specify --
                   as _f_i_l_e, arguments are read from the standard
                   input instead of the file.  You should
                   describe arguments in _f_i_l_e with spaces or new-
                   lines as separator.  The null line and the
                   line started with ## will be ignored.  When you
                   describe --@@ option in _f_i_l_e, the argument file
                   is referred recursively.

     bbuuiillttiinn _a_r_g ...
                   Execute _a_r_g as a simple builtin command.  When
                   the same named function is defined, the func-
                   tion will not be executed.

     ccdd [--LLPP] [_d_i_r]
     cchhddiirr [--LLPP] [_d_i_r]
                   Change the current directory in ffdd to _d_i_r.  If
                   _d_i_r is omitted, it moves to the directory
                   indicated by HHOOMMEE the internal variable.  If
                   you specify the pathname as "..", "??", "--",
                   "@@", it behaves like as LLOOGG_DDIIRR.

                   If --LL is specified, the logical pathname fol-
                   lowing symbolic links is used.  If --PP is
                   specified, the physical pathname following no
                   symbolic links is used.  Otherwise, the pphhyyssii--
                   ccaall option for sseett the builtin command is
                   effective.

     cchheecckkiidd [_f_i_l_e ...]
                   Calculate the unique ID of the specified file
                   and display it, according to the MD5 algorithm
                   in RFC1321.  When you specify multiple _f_i_l_es,
                   the IDs of all specified files are calculated
                   and displayed.  When you specify nothing, the
                   ID of running ffdd itself is displayed.

                   Since this algorithm is guaranteed to be
                   secure, it is available to confirm the iden-
                   tity of files.

     ccllss           Clear the screen.

     ccoommmmaanndd [--pp | --vv | --VV] _a_r_g ...
                   Execute _a_r_g as a simple command.  When the
                   same named function is defined, the function
                   will not be executed.  If --pp is specified, the
                   default value of PPAATTHH is used to search the
                   path.  If --vv is specified, the absolute path
                   for _a_r_g is displayed instead of executing _a_r_g.
                   In this case, _a_r_g the builtin command will
                   cause simply its name.  If --VV is specified,
                   verbose description for _a_r_g is displayed as
                   same as ttyyppee.

     ccoonnttiinnuuee _n    Resume the next iteration in the loop, it is
                   used in the ffoorr statement and so on.  If _n is
                   specified, it resumes the next iteration in
                   the loop _n - 1 levels out of the loop.

     ccooppyy [--AABBVVYY--YY] _s_r_c [--AABB] [++ _s_r_c_2 [--AABB] [++ ...]] [_d_e_s_t [--AABB]]
                   Copy the file indicated by _s_r_c into the file
                   or the directory indicated by _d_e_s_t.  When _d_e_s_t
                   indicates a directory, the filename in the
                   destination is _s_r_c.  If _d_e_s_t is omitted, it is
                   copied into the current directory.  You can
                   specify multiple source files by describing to
                   separate them with ++, or by using the wild-
                   card.  When you separate them with ++, those
                   files are concatenated and copied.  When you
                   use the wildcard, they are copied one by one
                   in case that the destination is a directory,
                   and they are concatenated in case that the
                   destination is a file.

                   When you specify --AA, it is treated as the
                   ASCII text file.  When you specify --BB, it is
                   treated as the binary file.  When you specify
                   --VV, it is verified to copy.  When you specify
                   --YY, it doesn't prompts for confirming to
                   overwrite into the destination.  When you
                   specify ----YY, it prompts for confirmation
                   before overwriting into the destination.

                   (MS-DOS version requires to use // instead of --
                   as an option prefix for compatibility with
                   COMMAND.COM.)

     ddeell [--PP] _f_i_l_e
     eerraassee [--PP] _f_i_l_e
                   Delete the files indicated by _f_i_l_e.  You can
                   specify multiple files by using wildcard.

                   When you specify --PP, it prompts for confirma-
                   tion before deleting files.

                   (MS-DOS version requires to use // instead of --
                   as an option prefix for compatibility with
                   COMMAND.COM.)

     ddiirr [--[--]PPWWSSBBLLVV44] [--AA[DDRRHHSSAA--]] [--OO[NNSSEEDDGGAA--]] [_d_i_r]
                   List files and sub directories in the direc-
                   tory indicated by _d_i_r.  If _d_i_r is omitted, the
                   information in the current directory is listed.

                   When you specify --PP, it prompts for every
                   screen.  When you specify --WW, it is listed in
                   the wide view.  When you specify --AA, it lists
                   only the files which have the attribute indi-
                   cated by the trailing character.
                         DD  directory        RR  read only file
                         HH  hidden file      SS  system file
                         AA  ready to archive --  except it
                   When you specify --OO, it sorts with the sorted
                   type indicated by the trailing character.
                         NN  by name          SS  by size
                         EE  by extension     DD  by date & time
                         GG  directory first  AA  by last access time
                         --  reverse order
                   When you specify --SS, it lists files in all sub
                   directories.  When you specify --BB, it displays
                   only names of files and directories.  When you
                   specify --LL, it uses lowercase.  When you
                   specify --VV, it lists the verbose information.
                   When you specify --44, it displays year with 4
                   digits.  And you can prefix -- to any option
                   letter to override the option.

                   (MS-DOS version requires to use // instead of --
                   as an option prefix for compatibility with
                   COMMAND.COM.)

     ddiirrss          Display the list of the current directory
                   stack.  PPuusshhdd and ppooppdd the builtin command can
                   load/unload directories onto the directory
                   stack.

     ddiissoowwnn [_j_o_b]  Remove the job specified with _j_o_b from the
                   shell control.  The job to be ddiissoowwnned cannot
                   be controlled by jjoobbss, ffgg and bbgg.  If invoked
                   as a login shell, any jobs not to be ddiissoowwnned
                   will be forced to exit when the shell finish.
                   ((UUNNIIXX))

                   If _j_o_b is omitted, the current job is removed
                   from the shell control.

     ddttyyppee _f_i_l_e    Display the contents of the file indicated by
                   _f_i_l_e.

     eecchhoo [--nnNN] [_a_r_g ...]
                   Echo _a_r_g to the standard output.  When you
                   don't specify --nn, newline is added to output
                   trailing after _a_r_g.  When you specify --NN, the
                   outputted newline becomes CR-NL (\r\n).  See
                   eecchhoo(1) for details.

     eennaabbllee [--nn] [_a_r_g ...]
                   Enable _a_r_g as a builtin command.  When you
                   specify --nn, it is disabled.  If _a_r_g is omit-
                   ted, all of the enabled or disabled builtin
                   commands is listed.

     eevvaall [_a_r_g ...]
                   Evaluate _a_r_g and execute the results.

     eevvaallmmaaccrroo [_a_r_g ...]
                   Evaluate parameter macros included in _a_r_g and
                   execute the results.  Since eevvaall doesn't
                   evaluate any parameter macro, you should
                   choose them according to uses.  When in the
                   function, you cannot use any parameter macro,
                   then you need this command to extract parame-
                   ter macros.

     eexxeecc [_c_o_m [_a_r_g ...]]
                   Execute _c_o_m in place of the execution of ffdd.
                   You can specify _a_r_g as arguments of _c_o_m.

     eexxiitt [_n]      Exit from ffdd.  When you specify _n, it exits
                   with the exit status _n.

     eexxppoorrtt [_N_A_M_E[==[_v_a_l_u_e]] ...]
                   Mark _N_A_M_E the internal variable to be
                   inherited to child processes as the environ-
                   ment variable.  Since then, the definition of
                   _N_A_M_E can be referred in any child process.
                   When you eexxppoorrtt the undefined internal vari-
                   able, it doesn't become the environment vari-
                   able until the internal variable is defined.
                   When you want to define the value at the same
                   time, you should specify _v_a_l_u_e.

                   If only == is specified and _v_a_l_u_e is omitted,
                   the value of _N_A_M_E the environment variable is
                   defined as a null.  If no argument is speci-
                   fied, all of the eexxppoorrtted environment vari-
                   ables is listed.  When you want to delete the
                   definition of the environment variable, you
                   can use uunnsseett the builtin command.

     ffaallssee         Only return with a 11 exit status.

     ffcc [--ll | --ss [_o_l_d==_n_e_w ...]] [--nnrr ] [--ee _e_d_i_t_o_r] [_f_i_r_s_t [_l_a_s_t]]
                   List or edit command histories.  _F_i_r_s_t and
                   _l_a_s_t select the range of command histories.
                   This specification can be described as a
                   numeric value or a string.  A positive value
                   means the command history number, and a nega-
                   tive value means the command history which has
                   the history number as the current history
                   number minus the value.  A string mean the
                   command history which starts with the string.
                   If --nn is specified, command histories are
                   listed without their history numbers.  If --rr
                   is specified, command histories are listed in
                   reverse order.  If --ee is specified, the editor
                   named by _e_d_i_t_o_r is used to edit command his-
                   tories, otherwise the editor specified by
                   FFCCEEDDIITT or EEDDIITTOORR the internal variable is
                   used.

                   When --ll is specified, selected command his-
                   tories are listed to the standard output.  In
                   this case, omitting _l_a_s_t means to specify the
                   current history number, and also omitting
                   _f_i_r_s_t means to specify --1166.

                   When --ss is specified, the command history
                   selected by _f_i_r_s_t is executed immediately.  In
                   this case, omitting _f_i_r_s_t means to specify the
                   current history number.  The first occurrence
                   of the string _o_l_d in the command history will
                   be replaced by the string _n_e_w before execu-
                   tion.

                   When neither --ll nor --ss is not specified,
                   selected command histories are edited, and
                   then each edited commands are executed one by
                   one with display in the standard output.  In
                   this case, omitting _l_a_s_t means to specify
                   _f_i_r_s_t, and also omitting _f_i_r_s_t means to
                   specify the current history number for both.

     ffdd [_d_i_r_e_c_t_o_r_y [_d_i_r_e_c_t_o_r_y_2]]
                   Invoke ffdd from the internal shell.  If you
                   specify _d_i_r_e_c_t_o_r_y, the current directory is
                   moved to the directory initially.  If you
                   specify _d_i_r_e_c_t_o_r_y_2, the split window mode
                   is invoked, and the current directory of
                   the supplemental window is moved to the
                   directory.  You can return to the internal
                   shell by QQUUIITT_SSYYSSTTEEMM.  It is effective only
                   when it is invoked as ffddsshh.

     ffgg [_j_o_b]      Continue the execution of the job specified
                   with _j_o_b in the foreground.  The following
                   format is available to specify a job.  ((UUNNIIXX))
                         %%
                         %%++   the current job
                         %%--   the previous job
                         %%_n   the job with job number _n
                         %%_s_t_r the job whose command line starts with _s_t_r
                   But, you must describe these %% in the command
                   line of EEXXEECCUUTTEE_SSHH as the duplicated expres-
                   sion, such as %%%%, for the reason of the param-
                   eter macro function described below.

                   If _j_o_b is omitted, the current job is contin-
                   ued in the foreground.

     ggeettffrreeqq [_f_i_l_e]
                   Output the contents of the translation fre-
                   quency file, specified by _f_i_l_e, to the stan-
                   dard output for the users Kana-Kanji trans-
                   lation learning.  The output format provides
                   one record per line, which consists of "Yomi-
                   Gana", "word" and "frequency" separated by tab.
                   You can use this output as the argument of
                   sseettffrreeqq to import the frequency information.
                   If _f_i_l_e is omitted, it is regarded as the
                   translation frequency file specified by
                   FFRREEQQFFIILLEE the internal variable.  ((UUNNIIXX))

     ggeettkkeeyy [_n_u_m]  Get the key code sequence for the pushed key.
                   It prompts after executed, and displays the
                   key code sequence for the key which you push
                   to specify.  It continues until you push any
                   key _n_u_m times.  When _n_u_m is more than 11 time,
                   you can stop it with pushing [SSppaaccee].  When
                   _n_u_m is 00 time, it continues forever until
                   [SSppaaccee] is pushed.  The displayed sequence can
                   be used as the key code sequence for kkeeyymmaapp
                   command.  ((UUNNIIXX))

                   If _n_u_m is omitted, it is regarded as 11 time is
                   specified.

     ggeettooppttss _o_p_t_s_t_r _N_A_M_E [_a_r_g ...]
                   Used to parse the optional parameters from a
                   sequence of _a_r_g.  The valid characters as
                   option is described in _o_p_t_s_t_r.  An option
                   character which needs an argument is described
                   with following :: in _o_p_t_s_t_r.  Each time ggeettooppttss
                   is invoked, the new option character parsed
                   from _a_r_g is substituted for _N_A_M_E the internal
                   variable.  When the option has an argument,
                   the argument is substituted for OOPPTTAARRGG the
                   internal variable.  And the index of the next
                   parameter is substituted for OOPPTTIINNDD the inter-
                   nal variable every time.  The value of OOPPTTIINNDD
                   is initialized to 11 whenever the shell is
                   invoked, another parsing of option parameters
                   needs initializing OOPPTTIINNDD to 11 manually.  If
                   _a_r_g is omitted, positional parameters are
                   parsed to the optional parameters.

                   When the end of option is encountered, ggeettooppttss
                   will exit with the value of 11.  In this case,
                   ?? is substituted for _N_A_M_E.  When an option
                   character which is not included in _o_p_t_s_t_r is
                   found, an error message is written to the
                   standard error, then ?? is substituted for _N_A_M_E
                   and OOPPTTAARRGG is unset.  But, if OOPPTTAARRGG is
                   started with ::, no error message is written,
                   and the found option character is substituted
                   for OOPPTTAARRGG instead.  When no argument is found
                   with the option character which needs an argu-
                   ment, an error message is written to the stan-
                   dard error, then ?? is substituted for _N_A_M_E and
                   OOPPTTAARRGG is unset.  But, if OOPPTTAARRGG is started
                   with ::, no error message is written, then the
                   found option character is substituted for
                   OOPPTTAARRGG instead, and :: is substituted for _N_A_M_E.

     hhaasshh [--rr | _c_o_m ...]
                   Search the absolute path for _c_o_m referring to
                   PPAATTHH, which indicates the search path when the
                   external command is executed, and register the
                   result in the hash table.

                   When you specify --rr instead of _c_o_m, all the
                   memorized hash table is discarded.  If _c_o_m is
                   omitted, the hash table information is listed.
                   hhiittss, ccoosstt, ccoommmmaanndd indicate the number of
                   times the command has been executed, the meas-
                   ure of the work required to search it in the
                   search path, and the absolute path for the
                   command, respectively.  When the command is
                   searched in a relative directory, it is neces-
                   sary to re-search whenever the current direc-
                   tory is moved, because it is not registered as
                   the absolute path.  In such command, ** trail-
                   ing hhiittss is displayed.

     hhiissttoorryy [_n]   List the last _n command histories with the
                   history number.

                   If _n is omitted, all of the memorized command
                   histories is listed.

     jjoobbss          List the running jobs.  ((UUNNIIXX))

     kkccoonnvv [--ii _i_n] [--oo _o_u_t] [_i_n_f_i_l_e [_o_u_t_f_i_l_e]]
                   Read from _i_n_f_i_l_e and convert its Kanji code
                   from _i_n to _o_u_t, and output to _o_u_t_f_i_l_e.  In _i_n
                   and _o_u_t, you can specify the string which used
                   in FFNNAAMMEEKKCCOODDEE the internal variable described
                   below.  If each of them is omitted, it is re-
                   garded as that the Kanji code specified in com-
                   pile is specified.  If _o_u_t_f_i_l_e is omitted, it
                   outputs to the standard output.  If also
                   _i_n_f_i_l_e is omitted, it reads from the standard
                   input.  ((UUNNIIXX))

     kkeeyymmaapp [_c [_s_t_r]]
                   Map the sequence _s_t_r as key code of the spe-
                   cial key _c.  You can use only the following
                   identifiers as _c.  ((UUNNIIXX))
                         UUPP       Up         DDOOWWNN     Down
                         RRIIGGHHTT    Right      LLEEFFTT     Left
                         BBEEGG      Begin      EEOOLL      Eol
                         HHOOMMEE     Home       EENNDD      End
                         IINNSS      Insert     DDEELL      Delete
                         IINNSSLLIINN   InsLine    DDEELLLLIINN   DelLine
                         PPPPAAGGEE    PageUp     NNPPAAGGEE    PageDown
                         EENNTTEERR    Enter      BBSS       Bs
                         CCLLRR      Clear      HHEELLPP     Help
                         PPLLUUSS     + (tenkey) MMIINNUUSS    - (tenkey)
                         AASSTTEERR    * (tenkey) SSLLAASSHH    / (tenkey)
                         CCOOMMMMAA    , (tenkey) DDOOTT      . (tenkey)
                         EEQQUUAALL    = (tenkey) RREETT      Return (tenkey)
                         TTKK00..TTKK99 0-9 (tenkey)
                         FF11...FF2200 function key

                   You can use the escape sequence in the key
                   code sequence, such as \\nn =0x0a and \\ee =0x1b.
                   You can also use the octal expression, such as
                   \\oooooo.  You can describe the control character
                   prefixing ^^, such as ^A.  ^^ itself can be
                   described as \\^^.

                   If _s_t_r is omitted, the key code sequence for _c
                   is displayed.  If both _s_t_r and _c are omitted,
                   all of the mappings for special keys is listed.
                   When you specify _s_t_r as """", the key code map-
                   ping for _c is canceled.

     kkiillll [--ll | --_s_i_g_n_a_l] [_p_i_d | _j_o_b ...]
                   Send the signal indicated by _s_i_g_n_a_l to the
                   process indicated by the process number _p_i_d or
                   to the job indicated by _j_o_b.  _S_i_g_n_a_l is
                   described as a numeric value or a signal name.

                   If _s_i_g_n_a_l is omitted, SSIIGGTTEERRMM is send.  When
                   you specify --ll, it lists the signal names
                   which can be used as _s_i_g_n_a_l instead of sending
                   a signal.

     llaauunncchh _e_x_t [_c_o_m [_f_o_r_m_a_t [_t_o_p _b_o_t_t_o_m]]]
     llaauunncchh _e_x_t _c_o_m [--ff _f_o_r_m_a_t] [--tt _t_o_p] [--bb _b_o_t_t_o_m] [--iiee _p_a_t_t]
                   Register the behavior for _e_x_t the extension as
                   the launcher.  You should the macro represen-
                   tation quoted with "" as _c_o_m.  When you regis-
                   ter an archive browser, you should describe
                   the command to list the archived files as _c_o_m,
                   and describe the format of the list as _f_o_r_m_a_t.
                   When you describe _t_o_p and _b_o_t_t_o_m, you can
                   specify unnecessary lines in the list as the
                   number of lines from the top/bottom line.
                   When _e_x_t starts with //, uppercase/lowercase is
                   ignored in the comparison of any extension.

                   If _c_o_m is omitted, the launcher registration
                   for _e_x_t is canceled.

                   When you register an archive browser, you can
                   use the latter form to describe more detailed
                   control.  You can specify multiple formats as
                   candidates with multiple --ff options.  These
                   candidates for format are compared in order of
                   appearance, if no one is matched completely
                   then the nearest one is adopted.  --ii and --ee
                   options specify _p_a_t_t the pattern for the line
                   to be ignored and for the line to be treated
                   as error respectively.  When the list includes
                   unnecessary lines you can specify also _t_o_p and
                   _b_o_t_t_o_m, but you must specify lines except
                   top/bottom lines with --ii option.  In case that
                   a failure to unpack files in the archive file
                   causes outputting some strings, you can
                   specify the strings with --ee option.  --ii and --ee
                   options can specify multiple patterns, and
                   they are effective if one of them is matched.
                   And you can use a wildcard in the description
                   for each _p_a_t_t the pattern.

     mmdd _d_i_r        Create the directory _d_i_r.

     mmkkddiirr _d_i_r     Same as mmdd.  ((DDOOSS))

     nneewwggrrpp [_a_r_g ...]
                   Execute nneewwggrrpp(1) in place of the execution of
                   ffdd.  You can specify _a_r_g as arguments of
                   nneewwggrrpp(1).  See nneewwggrrpp(1) for details.  ((UUNNIIXX))

     llooggiinn [_a_r_g ...]
                   Execute llooggiinn(1) in place of the execution of
                   ffdd.  You can specify _a_r_g as arguments of
                   llooggiinn(1).  See llooggiinn(1) for details.  ((UUNNIIXX))

     llooggoouutt [_n]    Exit from a login shell.  When you specify _n,
                   it exits with the exit status _n.

     ppooppdd          Unload the top directory onto the directory
                   stack, and change the current directory in ffdd
                   to the directory.  This command is failed when
                   the directory stack is empty.

     pprriinnttaarrcchh [_e_x_t]
                   Print the archiver commands registered for the
                   archive file which has _e_x_t the extension.

                   If _e_x_t is omitted, all of the registered
                   archiver commands is listed.

     pprriinnttbbiinndd [_c] Print the command binded to the key _c.  You
                   can specify the key as well as bbiinndd.

                   If _c is omitted, all of the registered key
                   bindings is listed, which is defined not as
                   the internal command but as the command macro.
                   The key bindings of internal commands can be
                   referred in HHEELLPP_MMEESSSSAAGGEE.

     pprriinnttddrrvv [_c]  Print the device file and the number of
                   heads/sectors/cylinders of the floppy drive
                   registered for the drive name _c.  ((UUNNIIXX))

                   If _c is omitted, all of the registered floppy
                   drives is listed.

     pprriinnttllaauunncchh [_e_x_t]
                   Print the command macro registered as the
                   launcher for _e_x_t the extension.  When it is
                   registered as the archive browser, the format
                   for listing is also printed.

                   If _e_x_t is omitted, all of the registered
                   launchers is listed.

     pprriinnttrroommaann [_r_o_m_a_n]
                   Print the Roman-Kana translation table for the
                   Kana-Kanji IME mode.  It means printing the
                   Japanese string bound for _r_o_m_a_n the Roman
                   string.  ((UUNNIIXX))

                   If _r_o_m_a_n is omitted, all the registered Roman-
                   Kana translation table is listed.

     ppuusshhdd [_d_i_r]   Load the current directory onto the directory
                   stack, and change the current directory in ffdd
                   to _d_i_r.  If you specify the pathname as "..",
                   "??", "--", "@@", it behaves like as LLOOGG_DDIIRR.
                   The pphhyyssiiccaall option for sseett the builtin com-
                   mand is effective for symbolic links.

                   If _d_i_r is omitted, change the current direc-
                   tory to the top directory of the directory
                   stack, and replace it with the current direc-
                   tory.  In this case, this command is failed
                   when the directory stack is empty.

     ppwwdd [--LLPP]     Display the current directory with the abso-
                   lute representation.  If --LL is specified, the
                   logical pathname following symbolic links is
                   displayed.  If --PP is specified, the physical
                   pathname following no symbolic links is
                   displayed.  Otherwise, the pphhyyssiiccaall option for
                   sseett the builtin command is effective.

     rreeaadd [--NN] [_N_A_M_E ...]
                   Read one line from the standard input and sub-
                   stitute that string for _N_A_M_E the internal
                   variable.  The inputted string is separated
                   with IIFFSS into some words.  When multiple _N_A_M_Es
                   are specified, words are substituted one by
                   one from the first of line, and all the rest
                   are substituted for the last _N_A_M_E.  When the
                   number of words in inputted string is less
                   than the number of _N_A_M_E, a null is substituted
                   for the rest of _N_A_M_E.

                   If --NN is specified, the newline of the line to
                   be read is regarded as CR-NL (\r\n).

     rreeaaddlliinnee [_p_r_o_m_p_t]
                   Read one line from the terminal input and out-
                   put that string to the standard output.  When
                   _p_r_o_m_p_t is specified, the string is displayed
                   on the beginning of input line.  This command
                   differs from rreeaadd the builtin command in the
                   terminal input and the line editing.  You can-
                   not use the history as one of the line edit-
                   ing, but can use the completion for a path-
                   name.

     rreeaaddoonnllyy [_N_A_M_E[==[_v_a_l_u_e]] ...]
                   Mark _N_A_M_E the internal variable to be
                   readonly.  Since then, you cannot change the
                   value of _N_A_M_E.  When you want to define the
                   value at the same time, you should specify
                   _v_a_l_u_e.

                   If only == is specified and _v_a_l_u_e is omitted,
                   the value of _N_A_M_E the internal variable is
                   defined as a null.  If no argument is
                   specified, all of the readonly internal vari-
                   ables is listed.

     rrdd _d_i_r        Delete the directory _d_i_r.  You cannot delete
                   the non-empty directory.

     rrmmddiirr _d_i_r     Same as rrdd.  ((DDOOSS))

     rreenn _o_l_d _n_e_w
     rreennaammee _o_l_d _n_e_w
                   Rename the filename or the directory name _o_l_d
                   into _n_e_w.  You can specify the wildcard in _o_l_d
                   and _n_e_w to rename the multiple filenames all
                   together.

     rreemm [_a_r_g ...] No effect, same as ::.

     rreettuurrnn [_n]    Return from a function with the return value
                   specified by _n.  If _n is omitted, the return
                   value is the exit status of the last executed
                   command.  It cannot be used out of a function.

     ssaavveettttyy [--nn]  Save the current terminal settings.  The saved
                   settings will be restored when EEXXEECCUUTTEE_SSHH is
                   executed later.  In case that you change termi-
                   nal settings with ssttttyy(1) and so on, you
                   should save the settings with this command not
                   to reset settings with the next execution of
                   EEXXEECCUUTTEE_SSHH.  If you change terminal settings
                   and execute this command not in the same com-
                   mand line, you should notice that this command
                   will save the reset settings.  If --nn is speci-
                   fied, the saved settings will be cleared.
                   ((UUNNIIXX))

     sseett [----aabbCCeeffhhkkmmnnttuuvvxx] [--oo _o_p_t_i_o_n] [_a_r_g ...]
                   List internal variables and functions, without
                   any argument.  When you specify _a_r_g, _a_r_g is
                   substituted for the positional parameter $$11,
                   $$22, ..., $$_n in order.  When you specify any
                   option, each option means the following.  When
                   you use ++ instead of --, the option parameter
                   turns off each option.
                   --aa   EExxppoorrtt any internal variable automati-
                        cally when it is defined.
                   --bb   When a background job has been ter-
                        minated, its status report will be
                        displayed immediately.  there is no
                        effect when the job control is not
                        enabled.
                   --CC   Prevent overwriting to any existent files
                        in redirection.
                   --ee   Exit immediately when any command returns
                        the exit status except 00.
                   --ff   Disable the wildcard expansion.
                   --hh   Register any command to the hash table
                        just before it is executed.  The commands
                        used in a function are read when it is
                        defined, and are registered to the hash
                        table.  The command hash itself is always
                        valid, if --hh option is set or not.
                   --kk   Treat all _N_A_M_E==[_v_a_l_u_e] formed arguments
                        as the variable definition, while they
                        are not placed on the beginning of com-
                        mand line string.
                   --mm   Enable the job control.  This option is
                        valid by default.  ((UUNNIIXX))
                   --nn   Read command inputs but don't execute
                        them.
                   --oo _o_p_t_i_o_n
                        The following identifiers are valid in
                        _o_p_t_i_o_n.
                        aalllleexxppoorrtt
                             Same as --aa.
                        aauuttoossaavveettttyy
                             Same as --SS.
                        eemmaaccss
                             Same as EEDDIITTMMOODDEE==eemmaaccss.
                        eerrrreexxiitt
                             Same as --ee.
                        hhaasshhaahheeaadd
                             Same as --hh.
                        iiggnnoorreeeeooff
                             Any EEOOFF will not terminate the
                             interactive shell.
                        kkeeyywwoorrdd
                             Same as --kk.
                        mmoonniittoorr
                             Same as --mm.
                        nnoocclloobbbbeerr
                             Same as --CC.
                        nnooeexxeecc
                             Same as --nn.
                        nnoogglloobb
                             Same as --ff.
                        nnoottiiffyy
                             Same as --bb.
                        nnoouunnsseett
                             Same as --uu.
                        oonneeccmmdd
                             Same as --tt.
                        pphhyyssiiccaall
                             Same as --PP.
                        ppttyysshheellll
                             Same as --TT.
                        vveerrbboossee
                             Same as --vv.
                        vvii   Same as EEDDIITTMMOODDEE==vvii.
                        xxttrraaccee
                             Same as --xx.
                        If _o_p_t_i_o_n is omitted, the values of the
                        current options are displayed.
                   --PP   CCdd and ppwwdd the builtin command use the
                        physical directory structure instead of
                        the logical directory structure following
                        symbolic links.
                   --SS   Execute ssaavveettttyy the builtin command auto-
                        matically whenever any command line is
                        processed.  The terminal settings will be
                        saved absolutely unless you operate the
                        terminal settings intentionally, so that
                        you should manually adjust the terminal
                        settings saved accidentally.  ((UUNNIIXX))
                   --TT   Invoke ffddsshh as the pseudo terminal.  You
                        cannot invoke any more pseudo terminals
                        in this mode.  It is effective only if
                        you specify it as the startup option or
                        in the initial configuration file.  It is
                        effective only if you specify it as the
                        startup option, when the shell is execut-
                        ed as the non-interactive shell.  It is
                        just ignored when invoked as ffdd.  ((UUNNIIXX))
                   --tt   Exit immediately after executing the
                        current command input.
                   --uu   Treat the reference of undefined vari-
                        ables as an error.
                   --vv   Display the command inputs whenever they
                        are read.
                   --xx   Display the command strings whenever they
                        are executed.
                   ----   Indicate the end of options.  No flag is
                        changed.

     sseettddrrvv _c _d_e_v_i_c_e _h_d _s_c _c_l
                   Specify the device file indicated by _d_e_v_i_c_e
                   for the MS-DOS floppy drive named as _c.  At
                   the same time, _h_d, _s_c, _c_l are specified as the
                   number of
                   heads(sides)/sectors/cylinders(tracks) in the
                   format which is treated in the driver of _d_e_v_-
                   _i_c_e.  In special case, when you want to treat
                   the 640KB2DD(hd=2/sc=8/cl=80) floppy disk with
                   the driver which can treat only the
                   820KB2DD(hd=2/sc=9/cl=80) floppy disk, you
                   should specify the value adding 110000 (108) as
                   the value of _s_c.  ((UUNNIIXX))

                   On the PC-UNIX environment which is worked on
                   PC, specifying the string HHDDDD or HHDDDD9988 instead
                   of _h_d, _s_c, _c_l, can register the MS-DOS parti-
                   tion on the hard disk for the PC/AT compatible
                   machine or PC-9800 series.  In this case, You
                   should describe the device file as the device
                   name prepared per the physical drive unit
                   rather than the device name prepared per the
                   partition (slice).  The MS-DOS partitions
                   included in the drive unit are automatically
                   expanded to the drive name after the drive
                   name _c.  When no MS-DOS partition is included
                   in the specified drive unit, this command is
                   ignored.  You can confirm what drive name is
                   valid by pprriinnttddrrvv command.  But any hard disk
                   is registered as readonly, for security.

     sseettffrreeqq [_f_i_l_e]
                   Append the frequency information inputted from
                   the standard input to the translation fre-
                   quency file, specified by _f_i_l_e, for the users
                   Kana-Kanji translation learning.  The input
                   format is based on the output format of
                   ggeettffrreeqq.  If you want to replace, rather than
                   to append, you must remove the translation fre-
                   quency file in advance.  If _f_i_l_e is omitted,
                   it is regarded as the translation frequency
                   file specified by FFRREEQQFFIILLEE the internal vari-
                   able.  ((UUNNIIXX))

     sseettrroommaann [--cc] [--rr] [--ff _f_i_l_e] [_r_o_m_a_n [_k_a_n_j_i]]
                   Setup the Roman-Kana translation table for the
                   Kana-Kanji IME mode.  It means binding _k_a_n_j_i
                   the Japanese string to _r_o_m_a_n the Roman string.
                   The part over 44 characters of _r_o_m_a_n, the
                   string which consists of 1 byte characters
                   only, will be ignored.  The part over 22 charac-
                   ters of _k_a_n_j_i, the string which consists of
                   multibyte characters or 1 byte characters,
                   will be ignored.  In this case, a multibyte
                   character is counted as 1 character as well as
                   a 1 byte character.  ((UUNNIIXX))

                   If _k_a_n_j_i is omitted, the registered binding of
                   the Roman-Kana translation table for _r_o_m_a_n the
                   Roman string will be deleted.  When you speci-
                   fy --cc, the whole Roman-Kana translation table
                   will be cleared to be empty.  When you specify
                   --rr, all the registered bindings will be reset
                   to restore the Roman-Kana translation table.
                   When you specify --ff, the file specified by
                   _f_i_l_e will be read as bindings of the Roman-
                   Kana translation table.  In this case, a pair
                   of _r_o_m_a_n and _k_a_n_j_i, which is separated by
                   spaces, must be described in each line of _f_i_l_e.
                   You can also use the file which contains the
                   output of pprriinnttrroommaann.

     sshhiifftt [_n]     Rename the positional parameters from $$_n+_1
                   into ones from $$11 in order.  The original
                   positional parameters from $$11 to $$_n are dis-
                   carded.  If _n is omitted, it is regard as 11 is
                   specified.

     ssoocckkeettiinnffoo [--aappAAPP] [_f_d]
                   If the file descriptor specified by _f_d is a
                   socket, the IP address and the TCP port number
                   of the connected remote host, and the IP ad-
                   dress and the TCP port number of the connected
                   local host, are outputted to the standard out-
                   put.  If _f_d is not a socket, this command will
                   be failed.  ((UUNNIIXX))

                   If _f_d is omitted, it is regarded as the stan-
                   dard input is specified.  If --aa is specified,
                   only the IP address of the remote host will be
                   outputted.  If --pp is specified, only the TCP
                   port number of the remote host will be output-
                   ted.  If --AA is specified, only the IP address
                   of the local host will be outputted.  If --PP is
                   specified, only the TCP port number of the
                   local host will be outputted.

     tteesstt [_e_x_p_r]
     [[ _e_x_p_r ]]      Evaluate the conditional expression _e_x_p_r.  See
                   tteesstt(1) for details.

     ttiimmeess         Display the accumulated user and system time
                   for the processes which has so far been exe-
                   cuted.

     ttrraapp [_c_o_m] [_n ...]
                   Read and execute the command _c_o_m when ffdd
                   receives the signal _n.  If _c_o_m is omitted, the
                   trap for the signal is reset.  When you
                   specify _c_o_m as a null, the signal ignored.
                   When you specify _n as 00, the command _c_o_m is
                   executed on exit.  If both _c_o_m and _n are omit-
                   ted, all of the registered traps is listed.

     ttrruuee          Only return with a 00 exit status.

     ttyyppee [_c_o_m ...]
                   Display how each _c_o_m would be treated when it
                   is used as a command name.

     uulliimmiitt [--SSHH] [--aa | --ccddffllmmnnssttvv] _n
                   Set the resource limits for ffdd and its child
                   processes to the value indicated by _n.  You
                   can use the string uunnlliimmiitteedd or the numeric
                   value in _n, uunnlliimmiitteedd means the maximum
                   specifiable value.  ((UUNNIIXX))

                   When you specify --HH, a hard limit is set.
                   When you specify --SS, a soft limit is set.
                   When you don't specify neither of them, both
                   limits are set.  If _n is omitted, the current
                   limit is displayed.  When you specify --aa, all
                   of the resource limits is displayed.

                   When you specify the following options, the
                   each resource limit is individually set or
                   displayed.  If no option is specified, it is
                   regarded as --ff is specified.
                   --cc   maximum core file size (in blocks)
                   --dd   maximum size of data segment (in KB)
                   --ff   maximum file size (in blocks)
                   --ll   maximum size of locked in memory (in KB)
                   --mm   maximum size of resident set (in KB)
                   --nn   maximum number of open file files
                   --ss   maximum size of stack segment (in KB)
                   --tt   maximum CPU time (in seconds)
                   --vv   maximum size of virtual memory (in KB)

     uummaasskk [_n_n_n]   Set the file creation mask to _n_n_n.  If _n_n_n is
                   omitted, the current value of the file crea-
                   tion mask is displayed.  See uummaasskk(2) for
                   details.

     uunnaalliiaass _n_a_m_e  Cancel the definition of the alias _n_a_m_e.  You
                   can use the wildcard in _n_a_m_e, in this case,
                   all of the matched alias definitions is cancel-
                   ed.  When you specify "*", all of the alias
                   definitions is invalid.

     uunnsseett [_N_A_M_E ...]
                   Delete the defined internal variable or func-
                   tion for each _N_A_M_E.  But the following
                   variable definition cannot be deleted.
                         PPAATTHH      PPSS11       PPSS22       IIFFSS
                         MMAAIILLCCHHEECCKK PPPPIIDD

     uunnsseettddrrvv _c _d_e_v_i_c_e _h_d _s_c _c_l
                   Delete the registered floppy drive.  Only the
                   registration with which all of _d_e_v_i_c_e, _h_d, _s_c,
                   _c_l is corresponded is deleted, then you
                   should confirm to delete very well.  ((UUNNIIXX))

                   When it is registered as HHDDDD or HHDDDD9988 in
                   sseettddrrvv, you should describe HHDDDD or HHDDDD9988
                   instead of _h_d, _s_c, _c_l.

     wwaaiitt [_p_i_d | _j_o_b]
                   Wait for the process indicated by _p_i_d or for
                   the job indicated by _j_o_b, and return its exit
                   status.  If both _p_i_d and _j_o_b are omitted, all
                   running jobs are waited.  ((UUNNIIXX))

     yyeessnnoo [_p_r_o_m_p_t]
                   Wait for a input of yy or nn from the terminal,
                   and then return 00 when yy is inputted, return
                   225555 when nn is inputted.  Instead of input of yy
                   or nn, you can select a character from
                   displayed [[YY//NN]] with cursor keys and push
                   [RReettuurrnn] to be regarded as an input of the
                   selected character.  An input of [SSppaaccee] or
                   [EEsscc] means the input of nn.  When _p_r_o_m_p_t is
                   specified, the string is displayed before
                   [[YY//NN]].

     _C_O_M_M_A_N_D [_a_r_g] Execute the internal command _C_O_M_M_A_N_D of ffdd.
                   You can describe each command identifier in
                   _C_O_M_M_A_N_D.  The following internal commands can
                   take a parameter argument _a_r_g.
                   CCUURR_UUPP
                   CCUURR_DDOOWWNN
                   CCUURR_RRIIGGHHTT
                   CCUURR_LLEEFFTT
                   RROOLLLL_UUPP
                   RROOLLLL_DDOOWWNN
                   WWIIDDEENN_WWIINNDDOOWW
                   NNAARRRROOWW_WWIINNDDOOWW  The number of lines, columns,
                                  or pages.
                   RREENNAAMMEE_FFIILLEE
                   PPAACCKK_FFIILLEE
                   BBAACCKKUUPP_TTAAPPEE    The filename.
                   LLOOGG_DDIIRR
                   MMAAKKEE_DDIIRR
                   IINNFFOO_FFIILLEESSYYSS
                   UUNNPPAACCKK_FFIILLEE    The directory name.
                   EEXXEECCUUTTEE_SSHH     The command string.
                   MMAARRKK_FFIINNDD
                   FFIINNDD_FFIILLEE
                   FFIINNDD_DDIIRR       The wildcard string.
                   MMAARRKK_AALLLL       00 will reset the mark of all
                                  files, the other will mark all
                                  files.
                   SSOORRTT_DDIIRR       The number substituted for
                                  SSOORRTTTTYYPPEE the internal variable.
                   EEDDIITT_CCOONNFFIIGG    The name of internal variable
                                  to be edited.

     ~~ and $$ in the previous registration string are expanded.
     But these expansions are restrained in the string quoted
     with '' instead of "".

     TTrreeee SSccrreeeenn
     Since representing the whole file system in tree structure
     takes too many time, only the directories which are direct
     ancestors and the direct sub directories are displayed,
     first in the tree screen.  In the directories which are
     direct ancestors, the other sub directories (if exists) are
     grouped as "......".  These grouped sub directories will be
     expanded automatically when a cursor is placed on its posi-
     tion.

     The sub directories which are not expanded yet are
     represented with '>>' trailing the filename, which shows as
     they are.  Such directory is never expanded until it is
     required to expand explicitly, then you should expand it by
     the following key inputs before moving to any hidden sub
     directory.

     In the tree screen, the following key inputs are available.
          UUpp, DDoowwnn  Move a cursor.
          RRiigghhtt     Expand the sub directory on the cursor posi-
                    tion.
          TTaabb       Expand the sub directory on the cursor posi-
                    tion recursively.
          PPaaggeeUUpp, PPaaggeeDDoowwnn
                    Move a cursor by half screen.
          HHoommee(<), EEnndd(>)
                    Move a cursor to the top/bottom of tree.
          ??         Move a cursor to the current directory.
          BBss        Move a cursor to the parent directory.
          LLeefftt      Group sub directories of the directory on the
                    cursor position, or move a cursor to the
                    parent directory.
          ((, ))      Move a cursor to the previous/next directory
                    among the same level sub directories.
          AA - ZZ     Move a cursor to the directory whose name
                    starts with the character or its lowercase.
          ll         Change the directory tree into the specified
                    directory.  Moving to the floppy drive is
                    also available.
          ^^LL        Redraw the tree structure.
          RReettuurrnn    Select the directory.
          EEsscc       Cancel.

     When directories are recursively expanded, the machine
     operation is so late that it maybe seems to freeze.  In this
     case, you can input any key while operating.  If key input
     is recognized while expanding directories, expanding has
     been stopped at that moment in spite of not finishing.  Even
     if key repeat keeps effective, any operation will be delayed
     for this function.

     AArrcchhiivvee BBrroowwsseerr
     When the launcher is invoked on the position of the file
     whose extension is registered to associate with an archive
     browser, the archive browser screen has come.  In this
     screen, you can browse files in the archive file as well as
     in the normal directory.  But you cannot use the following
     internal commands in this screen.
          LLOOGG_TTOOPP        AATTTTRR_FFIILLEE      CCOOPPYY_FFIILLEE      MMOOVVEE_FFIILLEE
          DDEELLEETTEE_FFIILLEE    DDEELLEETTEE_DDIIRR     RREENNAAMMEE_FFIILLEE    MMAAKKEE_DDIIRR
          WWRRIITTEE_DDIIRR      TTRREEEE_DDIIRR       EEDDIITT_FFIILLEE      LLOOGG_TTRREEEE
          CCOOPPYY_TTRREEEE      MMOOVVEE_TTRREEEE      FFIINNDD_DDIIRR       AATTTTRR_DDIIRR
          SSYYMMLLIINNKK_MMOODDEE   DDOOTTFFIILLEE_MMOODDEE   FFIILLEEFFLLGG_MMOODDEE   SSPPLLIITT_WWIINNDDOOWW
          KKIILLLL_WWIINNDDOOWW

     When you want to register a new archive browser, you must
     describe the format listed by the archiver as the following
     representation.  One format string represents the format for
     1 file in the list.
          %%aa        Field which indicates a file mode
          %%uu        Field which indicates UID of a file
          %%gg        Field which indicates GID of a file
          %%ss        Field which indicates a file size
          %%yy        Field which indicates a file creation year
          %%mm        Field which indicates a file creation month
                    (No concerning if numeric or alphabetical)
          %%dd        Field which indicates a file creation day
          %%ww        Field which indicates a file creation week (ignored)
          %%tt        Field which indicates a file creation time
                    ("HH:MM:SS" form, MM and SS can be lacking)
          %%pp        Field which indicates a file creation am/pm
          %%BB        Field which indicates a major device ID
          %%bb        Field which indicates a minor device ID
          %%//_s_t_r//    Field which indicates a type is directory
                    when this field string is _s_t_r
                    (case insensitive)
          %%!!_s_t_r!!    0 or more continuous fields
                    which consists of the string _s_t_r
                    (case insensitive)
          %%ff        Field which indicates a filename
          %%xx        Field which is needless (ignored)
          %%%%        % itself
          \\nn        Newline
          SSppaaccee TTaabb 0 or more characters of spaces or tabs

     In this description, the field means the area separated by
     spaces, tabs or newlines.  When the string which indicates
     each information is separated by these characters, you can
     simply describe the above string which indicates that field.
     When the string is separated by another character, you
     should describe the above string with that separator.  You
     can describe to indicate the field length as numeric, such
     as %_1_0_a.  This example means that the field which indicates
     a file mode consists of 10 characters.  If you describe it
     with a character ** as the field length instead of numeric,
     such as %*_f, the string to the end of line is regarded as a
     field, in which any space and tab will be ignored.

     When a field may have the different meanings according to
     situation, you should describe it quoted with {{ }}, such as
     %{_y_t}.  This example means that this field indicates a crea-
     tion year or a creation time.  When the information for 1
     file consists of multiple lines, you should place a \\nn on
     the position of newline in the format string.

     For example, the following are the format strings for the
     list of some archivers.  While some spaces are used here for
     easiness to see, these spaces are not always necessary
     because any space between fields is ignored.
     `llhhaa ll'           "%9a %u/%g %s %x %m %d %{yt} %f"
     `llhhaa vv' (MS-DOS)  "%f\n%s %x %x %y-%m-%d %t"
     `ttaarr ttvvff' (BSD)   "%9a %u/%g %s %m %d %t %y %f"
     `ttaarr ttvvff' (SVR4)  "%a %u/%g %s %m %d %t %y %f"

     If you register archive browsers with above format, in the
     builtin command of EEXXEECCUUTTEE_SSHH or in the initial configura-
     tion file, you can use the archive browser which is not
     prepared by default.  But, if you want to execute or view
     files in the archive file, you must register the archiver
     command for the archive file, too, don't forget this.

     On some OS, ttaarr(1) may output the Japanese timestamp when
     _j_a_p_a_n_e_s_e is substituted for LLAANNGG the environment variable.
     Since ffdd cannot analyze the representation like this, you
     should describe `_e_x_p_o_r_t _L_A_N_G=_C' in the initial configuration
     file, or specify LLAANNGG in the description of listing command,
     such as `_L_A_N_G=_C _t_a_r _t_v_f'.

     FFllooppppyy DDrriivvee ((UUNNIIXX))
     You can access the MS-DOS formatted floppy disk, by
     representing to prefix "_c::" to the directory name.  But, it
     is necessary to register the floppy drive and set DDOOSSDDRRIIVVEE
     the internal variable which makes this function effective,
     in advance.

     Each registered drive is distinguished with the drive name.
     You should tag the physically different drive as the dif-
     ferent drive name.  When the same physical drive supports
     multiple formats, you can register each format with the same
     drive name, or the different drive name each other.  If you
     tag the same drive name, the justice of the format is tried
     in registered order, so that you should register the format
     which you often use in the first place.

     Each drive of the floppy drive has the its own current
     directory.  The default value of this is a root directory,
     and the current directory is moved back to a root directory
     again whenever you change a floppy disk.  When you describe
     the directory name as starting with '/' after '::', it means
     the absolute path representation of that drive.  If this '/'
     is not exist, it means the relative path representation from
     the current directory of that drive, don't forget this.

     Regrettably, some internal commands like as WWRRIITTEE_DDIIRR,
     IINNFFOO_FFIILLEESSYYSS cannot support the floppy drive.  Some
     filenames are renamed when they are copied from UNIX for
     reason of the filename length limit.

     When you use a lowercase letter as the drive name, you can
     access it as the floppy drive which can treat the Long File
     Name (LFN) for MS-Windows formatted floppy disk.  In this
     case, you can copy a file with a long filename on UNIX as it
     is.  But, when the UNICODE translation table ffdd--uunniiccdd..ttbbll
     does not exist in the same directory as the invoked ffdd ex-
     ists, any Kanji filename cannot be treated as LFN representa-
     tion.  Reversely, when you use a uppercase letter as the
     drive name, LFN is ignored and 8+3 formed filename is treat-
     ed.  MS-DOS version inherits this specification by the case
     of a drive name.

     UURRLL DDrriivvee ((UUNNIIXX))
     You can access remote services on the network, by represent-
     ing the URL string as the directory name.  The URL format is
     _s_c_h_e_m_e::////[_u_s_e_r[::_p_a_s_s_w_o_r_d]@@]_h_o_s_t[::_p_o_r_t]//_d_i_r_e_c_t_o_r_y//.  You can
     specify ffttpp or hhttttpp as _s_c_h_e_m_e.  You can specify the name or
     IP address of the remote host as _h_o_s_t.  You can specify the
     TCP port number as _p_o_r_t.  If _p_o_r_t is omitted, the default
     port number is used.  The default port number for ffttpp is 2211,
     and the default port number for hhttttpp is 8800.  You can specify
     account information to connect the remote host as _u_s_e_r and
     _p_a_s_s_w_o_r_d.  If _u_s_e_r is omitted, the anonymous FTP connection
     will be used with ffttpp, or you will be queried as needed with
     hhttttpp.  If _p_a_s_s_w_o_r_d is omitted, you will be queried as needed.
     But, it is necessary to set UURRLLDDRRIIVVEE the internal variable
     which makes this function effective, in advance.

     Regrettably, some internal commands cannot support the URL
     drive, for the sake of restrictions of the FTP and HTTP pro-
     tocols or settings of the host side.

     SSttrriinngg IInnppuutt
     When you input the string, such as the pathname, the follow-
     ing key inputs are available.  The kind of referred history
     differs with the input string required.  In the split window
     mode, the current directory of another window is always
     placed on the top of the pathname history.
     LLeefftt, RRiigghhtt
               Move a cursor.
     UUpp, DDoowwnn  Refer the previous histories (only commands and
               pathnames), or move a cursor.
     BBeegg       Move a cursor to the beginning of string.
     EEooll       Move a cursor to the end of string.
     IInnss       Switch a input method to the insert/overwrite
               mode.  (Default value is the insert mode.)
     DDeell       Delete a character on the cursor position.
     BBss        Delete a character before the cursor position.
     DDeellLLiinnee   Delete a string after the cursor position.
     IInnssLLiinnee   Treat the next input character as it is, effective
               to input control characters.
     EEnntteerr     Insert a filename of the file on the cursor posi-
               tion.
     PPaaggeeUUpp    Convert a character on the cursor position to
               uppercase.
     PPaaggeeDDoowwnn  Convert a character on the cursor position to
               lowercase.
     TTaabb       Complete a pathname, a command name or a variable
               name on the cursor position.
               When there are two or more completion choices,
               inputting this continuously can display the com-
               pletion choice list.  Except for command line in
               the internal shell, you can make a choice from
               this list with cursor keys and [RReettuurrnn].
     ^^LL        Redraw the input string.
     ^^SS, ^^RR    Search the previous histories (only commands and
               pathnames) incrementally.
     RReettuurrnn    Decide the input, or decide the choice in the com-
               pletion choice list.
     EEsscc       Cancel.

     The inputted string is expanded before evaluation as follow-
     ing.  These expansions are also valid in the string of com-
     mand macros.  But these expansions are restrained in the
     string quoted with the quotation mark ''.

     ~~       Indicate your home directory, when it is the begin-
             ning of filename.

     ~~_u_s_e_r   Indicate _u_s_e_r's home directory, when it is the
             beginning of filename.  ((UUNNIIXX))

     ~~FFDD     Indicate the directory where the invoked ffdd is
             exists, when it is the beginning of filename.

     $$_N_A_M_E
     $${{_N_A_M_E}} Indicate the value of _N_A_M_E the internal variable or
             the environment variable.  When both are defined,
             the internal variable is prior.  When both are unde-
             fined, it is replaced a null.  The brace {{ }}
             separates _N_A_M_E from its trailing characters.

             When _N_A_M_E is the following character, it is replaced
             by the value substituted automatically by the shell.
             00      The executable filename when invoked.
             [11-99]  The positional parameter.
             **      The all positional parameters which starts
                    from $$11.  ""$$**"" is replaced by ""$$11 $$22 ..."".
             @@      The all positional parameters which starts
                    from $$11.  ""$$@@"" is replaced by ""$$11"" ""$$22"" ... .
             ##      The number of positional parameters.
             --      The option flags which is set by options when
                    invoked or sseett the builtin command.
             ??      The exit status of the last executed command.
             $$      The process number of the current shell.
             !!      The process number of the last executed back-
                    ground process.

     $${{_N_A_M_E::--_w_o_r_d}}
             If the value except a null is substituted for _N_A_M_E
             the internal variable or the environment variable,
             it is replaced by the value, otherwise it is
             replaced by _w_o_r_d.

     $${{_N_A_M_E::==_w_o_r_d}}
             If the value except a null is substituted for _N_A_M_E
             the internal variable or the environment variable,
             it is replaced by the value, otherwise _w_o_r_d is sub-
             stituted for _N_A_M_E the internal variable, and this
             expression itself is replaced by _w_o_r_d.  But you can-
             not substitute the value for any positional parame-
             ter.

     $${{_N_A_M_E::??_w_o_r_d}}
             If the value except a null is substituted for _N_A_M_E
             the internal variable or the environment variable,
             it is replaced by the value, otherwise display _w_o_r_d
             and exit from the shell.  If _w_o_r_d is omitted, the
             string ``ppaarraammeetteerr nnuullll oorr nnoott sseett'' is displayed in
             its place.

     $${{_N_A_M_E::++_w_o_r_d}}
             If the value except a null is substituted for _N_A_M_E
             the internal variable or the environment variable,
             it is replaced by _w_o_r_d, otherwise it is replaced by
             a null.

     $${{_N_A_M_E--_w_o_r_d}}
             If any value is substituted for _N_A_M_E the internal
             variable or the environment variable, it is replaced
             by the value, otherwise it is replaced by _w_o_r_d.

     $${{_N_A_M_E==_w_o_r_d}}
             If any value is substituted for _N_A_M_E the internal
             variable or the environment variable, it is replaced
             by the value, otherwise _w_o_r_d is substituted for _N_A_M_E
             the internal variable, and this expression itself is
             replaces by _w_o_r_d.  But you cannot substitute the
             value for any positional parameter.

     $${{_N_A_M_E??_w_o_r_d}}
             If any value is substituted for _N_A_M_E the internal
             variable or the environment variable, it is replaced
             by the value, otherwise display _w_o_r_d and exit from
             the shell.  If _w_o_r_d is omitted, the string ``ppaarraammee--
             tteerr nnuullll oorr nnoott sseett'' is displayed in its place.

     $${{_N_A_M_E++_w_o_r_d}}
             If any value is substituted for _N_A_M_E the internal
             variable or the environment variable, it is replaced
             by _w_o_r_d, otherwise it is replaced by a null.

     $${{##_N_A_M_E}}
             It is replaced by the length in characters of the
             value of _N_A_M_E the internal variable or the environ-
             ment variable.  If _N_A_M_E is ** or @@, it is replaced by
             the number of positional parameters instead of the
             length of characters.

     $${{_N_A_M_E%%_w_o_r_d}}
             It is replaced by the string in which the smallest
             portion of the suffix matched by the _w_o_r_d pattern is
             deleted from the value of _N_A_M_E the internal variable
             or the environment variable.  If _N_A_M_E is ** or @@,
             each positional parameter is replaced.  ( \\ is used
             instead of %% on MS-DOS version.)

     $${{_N_A_M_E%%%%_w_o_r_d}}
             It is replaced by the string in which the largest
             portion of the suffix matched by the _w_o_r_d pattern is
             deleted from the value of _N_A_M_E the internal variable
             or the environment variable.  If _N_A_M_E is ** or @@,
             each positional parameter is replaced.  ( \\\\ is used
             instead of %%%% on MS-DOS version.)

     $${{_N_A_M_E##_w_o_r_d}}
             It is replaced by the string in which the smallest
             portion of the prefix matched by the _w_o_r_d pattern is
             deleted from the value of _N_A_M_E the internal variable
             or the environment variable.  If _N_A_M_E is ** or @@,
             each positional parameter is replaced.

     $${{_N_A_M_E####_w_o_r_d}}
             It is replaced by the string in which the largest
             portion of the prefix matched by the _w_o_r_d pattern is
             deleted from the value of _N_A_M_E the internal variable
             or the environment variable.  If _N_A_M_E is ** or @@,
             each positional parameter is replaced.

     \\_c      It indicates a character _c itself.  You can use it
             when you want to use the preceding meta-character as
             a character with no evaluation, such as ~~ or $$.  You
             can describe \\ itself as "\\\\".  But, on MS-DOS ver-
             sion, because \\ which is used as the pathname delim-
             iter must be treat as well as the normal character,
             %%_c is expediently used in place of \\.

     The following is replaced only in the shell which is exe-
     cuted by EEXXEECCUUTTEE_SSHH and EEXXEECCUUTTEE_FFIILLEE.

     ``_l_i_s_t``  _L_i_s_t is executed and this string is replaced by its
             standard output.

     $$((_l_i_s_t)) _L_i_s_t is executed and this string is replaced by its
             standard output like as ``_l_i_s_t``.  This differs from
             ``_l_i_s_t`` in the point that nested expressions are
             allowed.  And any meta-characters such as quotes in
             _l_i_s_t are evaluated as it is.

     $$((((_e_x_p_r_e_s_s_i_o_n))))
             _E_x_p_r_e_s_s_i_o_n the arithmetic expression is evaluated
             and this string is replaced by its result value.
             You can specify numeric values, variables and
             integral calculations with the following operators
             in _e_x_p_r_e_s_s_i_o_n.
                                   (unary) (binary)
                 arithmetic        ++ --     ++ -- ** // %%
                 boolean           !!       ==== !!== << >> <<== >>== &&&& ||||
                 bit operator      ~~       && || ^^ <<<< >>>>
                 parenthesis       (( ))

     ??
     **
     [[
     ]]       The string including these letters is pattern-
             matched with existent files.  When it is matched, it
             is replaced by all of the matched filenames which
             are sorted in alphabetical order.
             ??    Match any single character except //.
             **    Match any 0 or more length string not including
                  //.
             ****   Match any 0 or more length string including //.
             [[...]]
                  Match any one of the characters enclosed by [[
                  ]].  When enclosed characters include --, it
                  matches any character whose character code is
                  between characters before/after --.
             [[!!...]]
                  Match any one of the characters not enclosed by
                  [[ ]].

             But, when the first character of the filename is ..,
             ??, ** and **** don't match it.

     EEddiitt MMooddee
     When you want to use some functions bound to special keys,
     such as a cursor key or a scroll key, such a key doesn't
     exist in some terminals.  In such a case, substituting the
     string for EEDDIITTMMOODDEE the internal variable can make you use
     some control keys as alternative to these special keys.
     Since this alternative key function is prior to the key
     binding by the builtin command, the key binding is invalid
     for the control characters used as the alternative keys.
     The prepared edit modes are the following 3 modes.

     eemmaaccss
                 ^^PP   = UUpp      ^^AA   = BBeegg
                 ^^NN   = DDoowwnn    ^^EE   = EEooll     ^^DD   = DDeell
                 ^^FF   = RRiigghhtt                  ^^QQ   = IInnssLLiinnee
                 ^^BB   = LLeefftt                   ^^KK   = DDeellLLiinnee
                 ^^VV   = PPaaggeeDDnn  ^^YY   = PPaaggeeUUpp  ^^OO   = EEnntteerr
                 ^^MM   = RReettuurrnn  ^^II   = TTaabb     ^^HH   = BBss
                 ^^[[   = EEsscc     ^^GG   = EEsscc

     wwoorrddssttaarr
                 ^^EE   = UUpp      ^^AA   = BBeegg     ^^VV   = IInnss
                 ^^NN   = DDoowwnn    ^^FF   = EEooll     ^^GG   = DDeell
                 ^^FF   = RRiigghhtt   ^^WW   = HHoommee    ^^]]   = IInnssLLiinnee
                 ^^SS   = LLeefftt    ^^ZZ   = EEnndd     ^^YY   = DDeellLLiinnee
                 ^^CC   = PPaaggeeDDnn  ^^RR   = PPaaggeeUUpp  ^^NN   = EEnntteerr
                 ^^MM   = RReettuurrnn  ^^II   = TTaabb     ^^HH   = BBss
                 ^^[[   = EEsscc

     vvii      VVii mode has the 2 local modes: "insert mode" and
             "command mode", and the function of keys are quite
             different with each mode.  You are in the command
             mode when you start to input, then you must input
             any key among 4 keys which switch to the insert
             mode, in order to input normal keys.
                 (command mode)
                 kk    = UUpp      00    = BBeegg
                 jj    = DDoowwnn    $$    = EEooll     xx    = DDeell
                 ll    = RRiigghhtt   gg    = HHoommee
                 hh    = LLeefftt    GG    = EEnndd     DD    = DDeellLLiinnee
                 ^^FF   = PPaaggeeDDnn  ^^BB   = PPaaggeeUUpp  oo    = EEnntteerr
                 ^^MM   = RReettuurrnn  ^^II   = TTaabb     ^^HH   = BBss
                 ^^[[   = EEsscc
                 (from command mode to insert mode)
                 ii, :: = only switch its mode
                                II    = + BBeegg
                 aa    = + RRiigghhtt AA    = + EEooll
                 RR    = overwrite
                 rr    = overwrite once
                 (insert mode)
                 ^^VV   = IInnssLLiinnee EEsscc  = to command mode

             This key binding is so particular that it is not
             suitable for those who don't use vvii editor everyday.

     KKaannaa--KKaannjjii IIMMEE ((UUNNIIXX))
     You can input strings in the Kana-Kanji IME mode, if you in-
     put the key specified by IIMMEEKKEEYY or select "Kanji" from the
     pseudo terminal menu.

     The translation performance will depend on the Kana-Kanji
     translation dictionary ffdd-iddiicctt..ttbbll.  When it does not exist
     in the same directory as the invoked ffdd exists, translation
     to Kanji will not be available.  The standard installed dic-
     tionary file is the Tan-Kanji dictionary, which can support
     only the Tan-Kanji translation.  The dictionaly such as the
     pubdic, which includes the Hinsi information, will bring you
     the Tan-Bunsetsu translation.  The Ren-Bunsetsu translation
     is not be supported.

     In the Kana-Kanji IME mode, the following key inputs are
     available.
          SSppaaccee     Trancelate to Kanji, or select the next trans-
                    lation candidate.
          LLeefftt, RRiigghhtt
          UUpp, DDoowwnn  Move a cursor in the list of the translation
                    candidate.
          BBss, DDeell   Delete a character before the cursor position.
          TTaabb       Toggle Hiragana, Katakana, Hankaku-Kana and
                    the direct input.
          ^^LL        Redraw the input string.
          RReettuurrnn    Decide the translation result.
          EEsscc       Cancel.

     When you translate the string of the capital 4 digit hexa-
     decimal prefixed by a capital letter, it is regarded as the
     hexadecimal showing the following Kanji code respectively.
     Then the menu will be displayed to select Kanji next to the
     Kanji code number.
          SS   Shift JIS
          EE   EUC-JP
          JJ   JIS code (JIS X0208)
          KK   Kuten code
          UU   UNICODE (UCS2)
     When you input [SSppaaccee] in the state where you decide an un-
     translated Kana, it is regarded as the initial reading of
     Kanji.  Then the menu will be desplayed to select Kanji
     whose reading starts with the Kana.

     PPaarraammeetteerr MMaaccrrooss
     You can use the following parameter macros in the string
     which is used for the registration of command macros and for
     executing command.  But, you cannot use them in the func-
     tions, the input file for ssoouurrccee command, and the initial
     configuration file, then you should use eevvaallmmaaccrroo command
     when you want to use any parameter macro in them.

     %%CC      The filename on the cursor position.  Or, it indi-
             cates the archive filename, in the macro to register
             the archiver command.

     %%XX      The filename except its extension on the cursor
             position.  Or, it indicates the archive filename
             except its extension, in the macro to register the
             archiver command.  Only the last one extension is
             removed.  TT, TTAA, MM trailing %%XX are replaced by %%TT,
             %%TTAA, %%MM except its extension respectively.  On MS-
             DOS version, you can describe a trailing SS as well
             as them.

     %%PP      The pathname of the current directory.

     %%KK      Prompt and return to ffdd after a command is finished.
             But, the meaning of %%KK is reverse in EEXXEECCUUTTEE_FFIILLEE
             and EEXXEECCUUTTEE_SSHH; it prompts by default and doesn't
             prompt if %%KK is specified.  You can never specify to
             prompt in macros to register the archive browser of
             the launcher and macros to register the archiver
             command.

     %%TT      List marked files separated by spaces as possible.
             When files are so many that the command line length
             exceeds the OS limitation, the rest of marked files
             are ignored.

     %%TTAA     List marked files as well as %%TT, and repeat the same
             command for spilt files to complete all marked
             files.

     %%MM      Execute the same command as many times as marked
             files, sending the marked file one by one.  It is
             useful to mark files by MMAARRKK_FFIINNDD and execute "mv %M
             %XM.bak" by EEXXEECCUUTTEE_SSHH.

     %%NN      Restrain the filename addition even if the parameter
             is omitted.

     %%RR      Make you input the additional parameter in executing
             a macro, if the length of command string has enough
             margin.  The cursor position in input is placed on
             the position of %%RR in a macro.  But, %%RR is ignored
             in macros to register the archive browser of the
             launcher, macros to register the archiver command,
             and EEXXEECCUUTTEE_FFIILLEE, EEXXEECCUUTTEE_SSHH.

     %%SS      The 8+3 formed filename with which the LFN formed
             filename on the cursor position is replaced.  You
             can use it when you use external commands which can
             treat only 8+3 formed arguments.  TT, TTAA, MM trailing
             %%SS can be described as well as %%XX.  ((DDOOSS))

     %%JJSS     The Kanji code of the string enclosed by this macro
             is converted into Shift JIS.  ((UUNNIIXX))

     %%JJEE     The Kanji code of the string enclosed by this macro
             is converted into EUC-JP.  ((UUNNIIXX))

     %%JJ77     The Kanji code of the string enclosed by this macro
             is converted into 7bit JIS.  ((UUNNIIXX))

     %%JJ88     The Kanji code of the string enclosed by this macro
             is converted into 8bit JIS.  ((UUNNIIXX))

     %%JJJJ     The Kanji code of the string enclosed by this macro
             is converted into ISO-2022-JP.  ((UUNNIIXX))

     %%JJHH     The Kanji code of the string enclosed by this macro
             is converted into HEX.  ((UUNNIIXX))

     %%JJCC     The Kanji code of the string enclosed by this macro
             is converted into CAP.  ((UUNNIIXX))

     %%JJUU     The Kanji code of the string enclosed by this macro
             is converted into UTF-8.  ((UUNNIIXX))

     %%JJMM     The Kanji code of the string enclosed by this macro
             is converted into UTF-8 for Mac OS X.  ((UUNNIIXX))

     %%JJII     The Kanji code of the string enclosed by this macro
             is converted into UTF-8 for iconv, which is used on
             environments using iconv-based UTF-8 such as Linux.
             ((UUNNIIXX))

     %%JJAA     The Kanji code of the string enclosed by this macro
             is converted into the Kanji code which is used in
             the pathname indicated by the string.  The variables
             SSJJIISSPPAATTHH, EEUUCCPPAATTHH, etc. can specify what kanji code
             is used in each pathname.  ((UUNNIIXX))

     When no filename parameter, such as %%CC and %%TT, is taken with
     the result to expand parameter macros in a command macro,
     the filename on the cursor position is automatically added
     to the last of expanded string, as ./_f_i_l_e_n_a_m_e form.  This
     addition is not done, in case of the input string for exe-
     cuting command, or when %%NN macro is specified.

     CCuussttoommiizzee
     You can customize ffdd as the following ways.  If you specify
     some configuration in multiple ways overlapped, it is prior
     in this order.

        EExxeeccuuttiinngg bbuuiillttiinn ccoommmmaannddss wwiitthh EEXXEECCUUTTEE_SSHH
                  You can execute builtin commands for each
                  registration for the internal variable defini-
                  tion, the environment variable definition, the
                  alias definition, the function definition, the
                  key binding, the keymap changing, the launcher
                  registration, the archiver command registra-
                  tion, and the floppy drive registration.

        CCuussttoommiizzeerr
                  EEDDIITT_CCOONNFFIIGG command is available for the inter-
                  nal variable definition, the key binding, the
                  keymap changing, the launcher registration, the
                  archiver command registration, and the floppy
                  drive registration.

        CCoommmmaanndd lliinnee ooppttiioonnss
                  You can specify the command line options as
                  `--_N_A_M_E==_v_a_l_u_e' form, to define the internal
                  variables.

        ..ffdd22rrcc    You can prepare the initial configuration file
                  ..ffdd22rrcc on your home directory, to execute the
                  command which is written in this file, before
                  the startup of ffdd.  You can describe builtin
                  commands and external commands in it to set up
                  each configuration.  Yet, when ffddsshh is invoked
                  as a login shell, ..ffddsshhrrcc is read instead of
                  ..ffdd22rrcc.

                  The initial configuration file //eettcc//ffdd22rrcc which
                  is prepared by a system administrator is read
                  preceding ..ffdd22rrcc and ..ffddsshhrrcc.  If this file
                  exists, the initial configurations prepared by
                  a system administrator are valid unless you
                  intentionally delete them in ..ffdd22rrcc and
                  ..ffddsshhrrcc.

                  (On MS-DOS version, these filenames are
                  $$HHOOMMEE\\ffdd22..rrcc, $$HHOOMMEE\\ffddsshh..rrcc and ~~FFDD\\ffdd22rrcc.)

        EEnnvviirroonnmmeenntt vvaarriiaabblleess
                  Any valid variable name as the internal vari-
                  able can be valid to be defined as the environ-
                  ment variable in advance.  But the internal
                  variable is always prior to the environment
                  variable in ffdd.  When the same named environ-
                  ment variable is used in another application,
                  you can also use the name which FFDD_ is prefixed
                  to each environment variable for ffdd only.  This
                  environment variable with FFDD_ is always prior
                  to the environment variable without it, then
                  the definition of the environment variable with
                  FFDD_ is prior to the definition of the internal
                  variable without FFDD_.

     CCuussttoommiizzeerr
     EEDDIITT_CCOONNFFIIGG command invokes the customizer to set up confi-
     gurations interactively.  You can select the category with
     the right/left cursor key, and select the item with the
     up/down cursor key, and change its content with [RReettuurrnn].
     When you finish to change, exit from the customizer with
     [EEsscc].

     The following categories are prepared.
        VVaarriiaabblleess Change the value of internal variables.  The
                  input method is different with the variable,
                  then you should input following the guidance on
                  screen.
        KKeeyy bbiinndd  Change the command bound to each key.  When you
                  newly bind a command to the key with no bind-
                  ing, you should select "NewEntry".  If you
                  select "Delete bind", the existent key binding
                  is deleted.
        KKeeyy mmaapp   Change the key code mapping for each special
                  key.  If you push [EEsscc] when you are prompted
                  to push the key, the existent key mapping is
                  deleted.  ((UUNNIIXX))
        LLaauunncchheerr  Change the launcher registration for each
                  extension.  When you newly register a launcher
                  for the extension with no registration, you
                  should select "NewEntry".  If you input a null
                  line when you input a command for the launcher,
                  the existent launcher registration is deleted.
        AArrcchhiivveerr  Change the archiver command registration for
                  each extension.  When you newly register a
                  archiver command for the extension with no
                  registration, you should select "NewEntry".  If
                  you input a null line both when you input a
                  command for pack/unpack, the existent archiver
                  command registration is deleted.
        DDOOSS ddrriivvee Change the floppy drive registration.  When you
                  newly register a floppy drive for the drive
                  name with no registration, you should select
                  "NewEntry".  If you input a null line when you
                  input a device name, the existent floppy drive
                  registration is deleted.  ((UUNNIIXX))
        SSaavvee      Save the configurations changed with the cus-
                  tomizer into a file, or cancel configurations
                  to restore to the previous state.
                  Cancel    Cancel the changed configurations
                            within the specified categories, and
                            restore to the state before the cus-
                            tomizer is invoked.
                  Clear     Cancel all the configurations within
                            the specified categories, and restore
                            to the default state.
                  Load      Load configurations from the speci-
                            fied file.
                  Save      Save all the configurations within
                            the specified categories to the
                            specified file.
                  Overwrite Overwrite all the configurations
                            within the specified categories to
                            the specified existent file.  The
                            original configurations which has
                            existed in the file are parsed, and
                            the configuration for the same target
                            is overwritten at the same place as
                            possible.  The configurations which
                            are not set up at present and the
                            configurations which are not sup-
                            ported by the customizer are remains
                            as it is.

                  When you specify the range of categories, all
                  categories are selected by default, then you
                  should turn on/off each selection with [SSppaaccee]
                  and decide with [RReettuurrnn].

     If you try to exit from the customizer without saving after
     changing any configuration, you will be confirmed whether if
     it is right to exit without saving.  While the changed con-
     figurations themselves are valid even if you exit without
     saving, when you want them to be valid in the next invoked
     ffdd, you must save them into the initial configuration file.

EENNVVIIRROONNMMEENNTT VVAARRIIAABBLLEESS
     The following environment variables are valid in ffdd.  These
     environment variables can be valid if they are defined as
     the internal variables.  You can specify them as the command
     line options in `--_N_A_M_E==_v_a_l_u_e' form.  But the variables
     followed by * cannot be use with the prefix FFDD_ as the
     environment variables.

     AADDJJTTTTYY        Reset the terminal mode forcedly to the normal
                   state, when ffdd is finished.  Invoking ffdd can
                   adjust the terminal rightly from the state
                   displaying broken characters.  Any value
                   except 00 and null effects valid.  ((UUNNIIXX))

     AANNSSIICCOOLLOORR     Colorize the file display.  When the terminal
                   which you use supports the color control
                   escape sequence of ANSI standard, each file is
                   displayed with color according to its file
                   type.  If the value is 11, it is colorized.  If
                   the value is 22, the background color is forced
                   to be black, for the case that the foreground
                   color is the same as the background color and
                   indistinguishable.  If the value is 33, the
                   foreground color is forced to be black.

     AANNSSIIPPAALLEETTTTEE   Specify color palette according to file type
                   when the file display is colorized.  This
                   variable value consists of a numeric value
                   whose maximum columns are 1111 columns.  The
                   number of each column shows a color number,
                   which specifies the color of file type
                   corresponding with its column.  The following
                   are correspondence of the column number to the
                   file type.
                       11    normal file
                       22    background
                       33    directory
                       44    unwritable file
                       55    unreadable file
                       66    symbolic link
                       77    socket (or system file on MS-DOS)
                       88    FIFO (or label on MS-DOS)
                       99    block device
                       1100   character device
                       1111   executable file

                   The following are the meaning of color number
                   specified on each column.
                       00    black
                       11    red
                       22    green
                       33    yellow
                       44    blue
                       55    magenta
                       66    cyan
                       77    white
                       88    default color for foreground
                       99    default color for background

                   The color number 88 is forced to be black, if
                   the value of AANNSSIICCOOLLOORR the variable is 33.  The
                   color number 99 is forced to be black, if the
                   value of AANNSSIICCOOLLOORR the variable is 22.

                   When the columns are less than 1111 or this
                   variable is not set, the standard color
                   palette will be applied for the file type
                   corresponding with the following columns.  The
                   standard color palette is described with the
                   above color number as 8899662244335511888888.

     AAUUTTOOUUPPDDAATTEE    Specify the interval in seconds to update auto-
                   matically the browser screen or the tree
                   screen.  When the key input idles for the spec-
                   ified seconds, the current information of file
                   list will be updated.  If this value is 00, the
                   screen will never updated automatically.  The
                   default value is 00.

     BBAASSIICCCCUUSSTTOOMM   Limit the internal variables for configuration
                   only to basic variables in the customizer, to
                   hide advanced variables.  Any value except 00
                   and null effects valid.

     CCDDPPAATTHH*       Specify the search path when an argument of ccdd
                   the builtin command does not start with //.
                   You can specify multiple paths separating with
                   '::'.  No search path is specified by default.

     CCOOLLUUMMNNSS*      The variable for the columns of a terminal
                   screen.  If some value is set, this value will
                   be replaced automatically according to chang-
                   ing the screen size.  If no value is set, this
                   value will remain unset.

     CCOOMMSSPPEECC       Specify the shell used to invoke a batch file.
                   If undefined, the shell defined by SSHHEELLLL the
                   internal variable or \COMMAND.COM is used.
                   ((DDOOSS))

     CCOOPPYYCCMMDD*      Specify the default options used by ccooppyy the
                   builtin command.

     DDEEFFCCOOLLUUMMNNSS    Specify the columns displayed in the screen
                   when ffdd is invoked.  The default value is 22.
                   If you specify the value except 11, 22, 33 and 55,
                   it is ignored.

     DDEEFFKKCCOODDEE      Specify the system default Kanji code.  The
                   arguments passed to external commands invoked
                   from ffdd will be converted into the specified
                   Kanji code.  When you use macros such as %%CC
                   and %%JJJJ, it will be converted into the Kanji
                   code according to each macro. JJIISS88, JJUUNNEETT,
                   HHEEXX, CCAAPP, etc. among them are the Kanji codes
                   used in Samba.  ((UUNNIIXX))
                       SSJJIISS, ssjjiiss     Shift JIS
                       EEUUCC, eeuucc       EUC-JP
                       JJIISS, jjiiss       7bit JIS
                       JJIISS88, jjiiss88     8bit JIS
                       JJUUNNEETT, jjuunneett   ISO-2022-JP
                       OOJJIISS, oojjiiss     7bit JIS (JIS C6226-1978 + roman)
                       OOJJIISS88, oojjiiss88   8bit JIS (JIS C6226-1978 + roman)
                       OOJJUUNNEETT, oojjuunneett ISO-2022-JP (JIS C6226-1978 + roman)
                       HHEEXX, hheexx       HEX
                       CCAAPP, ccaapp       CAP
                       UUTTFF88, uuttff88     UTF-8
                       UUTTFF88--mmaacc, mmaacc  UTF-8 for Mac OS X
                       UUTTFF88--iiccoonnvv     UTF-8 for iconv
                       default        no convert

     DDIIRRCCOOUUNNTTLLIIMMIITT Specify the maximum number of files read from
                   the directory in the tree screen.  When the
                   directory trailed by '>>' has no sub directory,
                   the expanded result is not changed.  If the
                   number of files (including directories) in the
                   directory is within this value, the directory
                   with no sub directory is not trailed '>>' from
                   the first.  Moreover, the file list in the
                   directory displayed on the right of screen is
                   not displayed over this value.  If this value
                   is 00, you can realize a comfortable operation
                   speed even in the slow machine.  The default
                   value is 5500 files.

     DDIIRRCCMMDD*       Specify the default options used by ddiirr the
                   builtin command.

     DDIIRRHHIISSTT       Specify the maximum number of the directory
                   histories which can be referred by the direc-
                   tory input line.  The default value is 5500.  If
                   this value is 00, you can refer to no directory
                   history.

     DDIIRRHHIISSTTFFIILLEE   Specify the name of the directory history file
                   which can be referred by the directory input
                   line.  Unless you specify it, the directory
                   history is not loaded nor saved.  The default
                   value is not specified.

     DDIIRRHHIISSTTUUMMAASSKK  Specify the file creation mask with octal
                   expression for the directory history file.  It
                   is used only if no existent file exists.  But
                   the mask value set by uummaasskk the builtin com-
                   mand is prior, then actual mask value is the
                   logical OR of this value and uummaasskk value.

     DDIISSPPLLAAYYMMOODDEE   Specify the filename display mode of the file
                   list when ffdd is invoked.  Each of the symbolic
                   link mode, the file type symbol mode and the
                   dot file display mode can be selected indivi-
                   dually.  The default value is 00.  The follow-
                   ing are specifiable values.
                       00    standard
                       11    SYMLINK
                       22                FILETYPE
                       33    SYMLINK &   FILETYPE
                       44                             DOTFILE
                       55    SYMLINK &                DOTFILE
                       66                FILETYPE &   DOTFILE
                       77    SYMLINK &   FILETYPE &   DOTFILE

                   Moreover, on the OS which supports the file
                   flag, if you specify the value adding 88 to
                   each value, you can select the file flag
                   display mode.

     DDOOSSDDRRIIVVEE      Validate the access function to the MS-DOS
                   floppy.  If no floppy drive is registered,
                   this validation cannot make you access the
                   floppy.  Any value except 00 and null effects
                   valid.

                   On MS-DOS version, This definition can make
                   you treat the LFN formed filename in the old
                   DOS before Ver. 6.xx.  In this case, you don't
                   have to register any floppy drive.  the access
                   speed may be slow or some functions may be
                   restricted for the reason to operate the disk
                   I/O not by way of OS.

     DDUUMMBBSSHHEELLLL     Don't use any control sequences to edit com-
                   mand line in the internal shell.  In the
                   internal shell, the cursor addressing of ter-
                   minal mode is not valid.  In case of some ter-
                   minal such as a console terminal, the cursor
                   addressing cannot work correctly in this ter-
                   minal mode, and the editing string is
                   displayed incorrectly.  When this variable is
                   valid, while no control sequence is used to
                   edit command line, an inefficient cursor
                   addressing will cause restriction of some
                   functions and failure of response.  Any value
                   except 00 and null effects valid.

     EEDDIITTMMOODDEE      Specify the edit mode of key input as the
                   string.  The default value is eemmaaccss.  The
                   value except eemmaaccss, wwoorrddssttaarr and vvii or null
                   are specified, any control character is not
                   converted and will be sent as it is.

     EEDDIITTOORR        Specify the editor command used for editing
                   files.

     EENNVV*          Specify the additional initial configuration
                   file when invoked as ffddsshh.  You must specify
                   its filename as fullpath.  When this variable
                   is set, the initial configuration file is read
                   after //eettcc//ffdd22rrcc, and before ..ffdd22rrcc or ..ffddsshhrrcc.
                   This value will be ignored if your real and
                   effective UIDs or real and effective GIDs are
                   different.

     FFCCEEDDIITT        Specify the editor command used for ffcc the
                   builtin command.

     FFDD_VVEERRSSIIOONN    A version string of the running ffdd.

     FFNNAAMMEEKKCCOODDEE    Specify the Kanji code for filename.  Any
                   filename is converted into the specified Kanji
                   code at the point of accessing the file, then
                   you can refer to the file which has a Kanji
                   filename from another machine on network which
                   use a different Kanji code.  The archive
                   browser and bbrroowwssee the builtin command also
                   refer the specified Kanji code.  JJIISS88, JJUUNNEETT,
                   HHEEXX, CCAAPP, etc. among them are the Kanji codes
                   used in Samba.  ((UUNNIIXX))
                       SSJJIISS, ssjjiiss     Shift JIS
                       EEUUCC, eeuucc       EUC-JP
                       JJIISS, jjiiss       7bit JIS
                       JJIISS88, jjiiss88     8bit JIS
                       JJUUNNEETT, jjuunneett   ISO-2022-JP
                       OOJJIISS, oojjiiss     7bit JIS (JIS C6226-1978 + roman)
                       OOJJIISS88, oojjiiss88   8bit JIS (JIS C6226-1978 + roman)
                       OOJJUUNNEETT, oojjuunneett ISO-2022-JP (JIS C6226-1978 + roman)
                       HHEEXX, hheexx       HEX
                       CCAAPP, ccaapp       CAP
                       UUTTFF88, uuttff88     UTF-8
                       UUTTFF88--mmaacc, mmaacc  UTF-8 for Mac OS X
                       UUTTFF88--iiccoonnvv     UTF-8 for iconv
                       default        no convert

     FFRREEQQFFIILLEE      Specify the translation frequency file for the
                   users Kana-Kanji translation learning.  If the
                   filename is not defined, the frequency infor-
                   mation will not be saved nor be referred.  The
                   default value is ~~//..ffdd_ffrreeqq.  ((UUNNIIXX))

     FFRREEQQUUMMAASSKK     Specify the file creation mask with octal
                   expression for the translation frequency file
                   for the users Kana-Kanji translation learning.
                   The updated translation frequency file will be
                   rebuilt, not be overwritten, so that it is
                   used even if existent file exists.  But the
                   mask value set by uummaasskk the builtin command is
                   prior, then actual mask value is the logical
                   OR of this value and uummaasskk value.  ((UUNNIIXX))

     FFTTPPAADDDDRREESSSS    Specify the mail address used as the password
                   for anonymous FTP, when the URL drive connects
                   the FTP host.  The default value is FFDDcclloonnee@@.
                   ((UUNNIIXX))

     FFTTPPLLOOGGFFIILLEE    Specify the filename to which communication
                   logs are outputted, when the URL drive communi-
                   cates with the FTP host.  If it is not specifi-
                   ed as fullpath nor you don't prepare the direc-
                   tory in which the log file is stored, no log
                   will be outputted.  ((UUNNIIXX))

     FFTTPPPPRROOXXYY      Specify the URL used as the proxy server, when
                   the URL drive connects the FTP host.  The URL
                   format is _s_c_h_e_m_e::////[_u_s_e_r[::_p_a_s_s_w_o_r_d]@@]_h_o_s_t[::
                   _p_o_r_t].  You can specify ffttpp or hhttttpp as _s_c_h_e_m_e.
                   You can specify account information to con-
                   nect the proxy server as _u_s_e_r and _p_a_s_s_w_o_r_d.
                   The default value is not specified.  ((UUNNIIXX))

     FFUUNNCCLLAAYYOOUUTT    Specify the layout of the function line, as
                   the form of _n * 100 + _s_i_z_e.  _N means the num-
                   ber of function keys to be displayed in the
                   function line.  _S_i_z_e means the block size of
                   function keys to be displayed.  The default
                   value is 11000055.  (It means 10 function keys
                   will be displayed, 5 of which are grouped.)

     HHIIDDEEPPAASSSSWWDD    Suppress displaying ** as a replacement for the
                   inputted letter, when the URL drive requires
                   you to input a password.  Any value except 00
                   and null effects valid.  ((UUNNIIXX))

     HHIISSTTFFIILLEE      Specify the name of the command history file
                   which can be referred by EEXXEECCUUTTEE_FFIILLEE and EEXXEE--
                   CCUUTTEE_SSHH.  Unless you specify it, the directory
                   history is not loaded nor saved.  The default
                   value is ~~//..ffdd_hhiissttoorryy.

                   (On MS-DOS version, The default value is
                   $$HHOOMMEE\\ffdd..hhsstt.)

     HHIISSTTSSIIZZEE      Specify the maximum number of the command his-
                   tories which can be referred by EEXXEECCUUTTEE_FFIILLEE
                   and EEXXEECCUUTTEE_SSHH.  The default value is 5500.  If
                   this value is 00, you can refer to no command
                   history.

     HHIISSTTUUMMAASSKK     Specify the file creation mask with octal
                   expression for the command history file.  It
                   is used only if no existent file exists.  But
                   the mask value set by uummaasskk the builtin com-
                   mand is prior, then actual mask value is the
                   logical OR of this value and uummaasskk value.

     HHOOMMEE*         Specify the default value when no argument of
                   ccdd the builtin command is specified.  When
                   invoked as a login shell, if this variable is
                   specified that directory becomes the current
                   directory, otherwise your home directory is
                   automatically defined as this value.

     HHTTMMLLLLOOGGFFIILLEE   Specify the filename to which received HTML
                   data log are outputted, when the URL drive com-
                   municates with the HTTP host.  If it is not
                   specified as fullpath nor you don't prepare
                   the directory in which the log file is stored,
                   no log will be outputted.  ((UUNNIIXX))

     HHTTTTPPLLOOGGFFIILLEE   Specify the filename to which communication
                   logs are outputted, when the URL drive communi-
                   cates with the HTTP host.  If it is not speci-
                   fied as fullpath nor you don't prepare the di-
                   rectory in which the log file is stored, no
                   log will be outputted.  ((UUNNIIXX))

     HHTTTTPPPPRROOXXYY     Specify the URL used as the proxy server, when
                   the URL drive connects the HTTP host.  The URL
                   format is _s_c_h_e_m_e::////[_u_s_e_r[::_p_a_s_s_w_o_r_d]@@]_h_o_s_t[::
                   _p_o_r_t].  You can specify hhttttpp as _s_c_h_e_m_e.  You
                   can specify account information to connect
                   the proxy server as _u_s_e_r and _p_a_s_s_w_o_r_d.  The
                   default value is not specified.  ((UUNNIIXX))

     IIFFSS*          Specify the internal field separators.  They
                   are used in EEXXEECCUUTTEE_SSHH to separate command and
                   arguments.  Space, tab and newline are speci-
                   fied by default.

     IIGGNNOORREECCAASSEE    Ignore uppercase/lowercase when filenames are
                   compared.  Any value except 00 and null effects
                   valid.  ((UUNNIIXX))

     IIMMEEBBUUFFFFEERR     Specify whether if the Kana-Kanji translation
                   table is held on memory or not.  It will be
                   fast to translate strings from Kana to Kanji.
                   You should set this if you have enough memory.
                   The following are specifiable values.  ((UUNNIIXX))
                       00    not hold on memory
                       11    only the Hinsi information table
                       22    also includes the index tables
                       33    hold all tables

     IIMMEELLEEAARRNNIINNGG   Specify the learning level with the trans-
                   lation frequency file for the users Kana-Kanji
                   translation learning.  The larger value will
                   increase the importance of the frequency infor-
                   mation.  If the value is 00, the frequency
                   information is only saved, without any refer-
                   ence.  The default value is 1166.  ((UUNNIIXX))

     IIMMEEKKEEYY        Specify the key to toggle the direct input
                   mode and the Kana-Kanji IME mode when you in-
                   put some strings.  You can describe the same
                   key name as bbiinndd command.  The default value
                   is not specified.  ((UUNNIIXX))

     IINNHHEERRIITTCCOOPPYY   Inherit the destination timestamp from the
                   source timestamp when CCOOPPYY_FFIILLEE command is
                   executed.  Any value except 00 and null effects
                   valid.  ((UUNNIIXX))

                   (On MS-DOS version, the destination timestamp
                   is always inherited, if this variable is
                   effective or not.)

     IINNPPUUTTKKCCOODDEE    Specify the Kanji code for input from key-
                   board.  When the value except the following is
                   specified, the Kanji code specified in compile
                   is valid.  ((UUNNIIXX))
                       SSJJIISS, ssjjiiss     Shift JIS
                       EEUUCC, eeuucc       EUC-JP
                       UUTTFF88, uuttff88     UTF-8
                       UUTTFF88--mmaacc, mmaacc  UTF-8 for Mac OS X
                       UUTTFF88--iiccoonnvv     UTF-8 for iconv

     LLAANNGGUUAAGGEE      Specify the language for display character.
                   It means not only each messages displayed by
                   ffdd, but also a Kanji code of filename to be
                   converted.  The following is the kind of
                   languages, it doesn't have to be the string
                   itself and is enough to contain the string,
                   the value of LLAANNGG the environment variable
                   also can be used.  JJIISS88, JJUUNNEETT, etc. among
                   them are the Kanji codes used in Samba.
                       SSJJIISS, ssjjiiss     Shift JIS
                       EEUUCC, eeuucc       EUC-JP
                       JJIISS, jjiiss       7bit JIS
                       JJIISS88, jjiiss88     8bit JIS
                       JJUUNNEETT, jjuunneett   ISO-2022-JP
                       OOJJIISS, oojjiiss     7bit JIS (JIS C6226-1978 + roman)
                       OOJJIISS88, oojjiiss88   8bit JIS (JIS C6226-1978 + roman)
                       OOJJUUNNEETT, oojjuunneett ISO-2022-JP (JIS C6226-1978 + roman)
                       UUTTFF88, uuttff88     UTF-8
                       UUTTFF88--mmaacc, mmaacc  UTF-8 for Mac OS X
                       UUTTFF88--iiccoonnvv     UTF-8 for iconv
                       eenn, CC, PPOOSSIIXX   English (message only)
                       default        no convert

                   (On MS-DOS version, only the English is
                   valid.)

     LLIINNEENNOO*       Indicate the current line number.  When not in
                   a script nor function, this value cannot be
                   guaranteed to make sense.  If you uunnsseett or
                   reset this value, this variable will lose its
                   special meaning to be treated as a general
                   variable.

     LLIINNEESS*        The variable for the lines of a terminal
                   screen.  If some value is set, this value will
                   be replaced automatically according to chang-
                   ing the screen size.  If no value is set, this
                   value will remain unset.

     LLOOGGFFIILLEE       Specify the log filename with the level spaci-
                   fied by LLOOGGLLEEVVEELL or RROOOOTTLLOOGGLLEEVVEELL.  If it is
                   not specified as fullpath, it will be regarded
                   as the path under your home directory.  You
                   must prepare the directory in which the log
                   file is stored, because any directories are
                   not created automatically.  The default value
                   is not specified.

     LLOOGGLLEEVVEELL      Specify the priority for the log contents.
                   The default value is 00.
                       00       no log
                       11       only warning such as writing
                       22       notice such as changing, and over
                       33       info. such as refering, and over
                       >= 44    debug level, and over

                   The same operation can result as an error to
                   output the log in the lower priority by 1 lev-
                   el.

     LLOOGGSSIIZZEE       Specify the maximum kilobyte size for the log
                   file specified by LLOOGGFFIILLEE.  If the size ex-
                   ceeds this value, the last log file will be re-
                   named as the filename followed by the exten-
                   sion ..oolldd to create another new log file.  The
                   default value is 11002244(1MB).  If this value is
                   00, the log file will not be renamed.

     LLOOOOPPCCUURRSSOORR    Loop a cursor moving within the same page,
                   when you move a cursor.  Any value except 00
                   and null effects valid.

     MMAAIILL*         Specify the spool filename when the internal
                   shell will check new mails.  If MMAAIILLPPAATTHH is
                   set, it is prior to this.  ((UUNNIIXX))

     MMAAIILLCCHHEECCKK*    Specify the interval of checking new mails in
                   seconds, for the spool files specified by
                   MMAAIILLPPAATTHH or MMAAIILL.  The default value is 660000
                   seconds.  If this value is 00, it will be
                   checked before each prompt.  ((UUNNIIXX))

     MMAAIILLPPAATTHH*     Specify the multiple spool filenames, as the
                   list separated by ::, when the internal shell
                   will check new mails.  The any specified files
                   will be checked.  Each filenames can be fol-
                   lowed by %% and a arrival message of new mails.
                   The default message is yyoouu hhaavvee mmaaiill.  ((UUNNIIXX))

     MMEESSSSAAGGEELLAANNGG   Specify the language for display character.
                   The language of messages specified by this
                   will be prior to the one specified by LLAANNGGUUAAGGEE.
                   When the message is Japanese, the Kanji code
                   will be defined by the value of LLAANNGGUUAAGGEE.  The
                   following is the kind of languages, it doesn't
                   have to be the string itself and is enough to
                   contain the string, the value of LLAANNGG the envi-
                   ronment variable also can be used.  Otherwise,
                   In case of some additional message catalogs
                   are prepared, you can specify its extension as
                   the catalog name for MMEESSSSAAGGEELLAANNGG to replace
                   messages.
                       eenn, CC, PPOOSSIIXX   English
                       jjaa             Japanese
                       default        the value of LLAANNGGUUAAGGEE

     MMIINNFFIILLEENNAAMMEE   Specify the minimum character length of
                   filename display area in the file list.  When
                   the area enough to be specified here cannot be
                   obtained, the information is reduced in the
                   order of UID, GID, timestamp, size.  The
                   default value is 1122 characters.

     OOPPTTAARRGG*       An option argument is substituted in ggeettooppttss
                   the builtin command.

     OOPPTTIINNDD*       Specify the index of the next parameter in
                   ggeettooppttss the builtin command.

     PPAAGGEERR         Specify the pager command used for viewing
                   files.

     PPAATTHH*         Specify the search path for executing external
                   commands.  You can specify multiple paths
                   separating with '::'.

     PPPPIIDD*         Indicate the process ID of the parent proccess
                   for ffdd which is invoked first.  ((UUNNIIXX))

     PPRREECCEEDDEEPPAATTHH   Specify the file preceding function, which
                   displays only filenames before obtaining their
                   file information, for the directory which has
                   a lot of files like as /dev.  You can specify
                   multiple pathnames separating with '::'.  You
                   are enough to specify only the top directory
                   where you want to realize the file preceding
                   function, then the file preceding function is
                   valid in all of the directories under that
                   directory.  When the file preceding function
                   is effective, any files are not sorted in that
                   directory, and file information is obtained
                   file by file while waiting the key input.  No
                   pathname is specified by default.

     PPRREECCOOPPYYMMEENNUU   Display the menu in advance, which ask you
                   what do you want with the same named files and
                   the restricted files, when you copy, move, or
                   delete multiple files.  In case of too many
                   target files, it avoids the occurrence of que-
                   ry after waiting for a moment.  Any value ex-
                   cept 00 and null effects valid.

     PPRROOGGRREESSSSBBAARR   Display the progress bar, which indicates the
                   progress, when you copy, move, or delete files.
                   It needs the time to calculate the progress,
                   to make the processing time a little longer
                   than no progress bar.  Any value except 00 and
                   null effects valid.

     PPSS11           Specify the prompt string of input line in
                   EEXXEECCUUTTEE_SSHH.  The default value is "$$ ".  The
                   following escape sequences are available.
                       \\uu   username ((UUNNIIXX))
                       \\hh   hostname ((UUNNIIXX))
                       \\HH   hostname (including domain name) ((UUNNIIXX))
                       \\ww   fullpath of current directory
                       \\~~   fullpath of current directory
                            (to simplify home directory with ~~)
                       \\WW   current directory name
                       \\!!   command history number
                       \\$$   if UID is 0, a ##, otherwise a $$ ((UUNNIIXX))
                       \\[[   beginning of non-printing sequence
                            (terminal control character etc.)
                       \\]]   ending of non-printing sequence
                       \\ee   ESC (\033)
                       \\_o_o_o character indicated by the octal _o_o_o
                       \\\\   \ itself

     PPSS22           Specify the prompt string when more continuous
                   input is needed in EEXXEECCUUTTEE_SSHH.  The default
                   value is ">> ".

     PPSS44*          Specify the prompt string with which command
                   strings are displayed when you do sseett --xx.

     PPTTYYIINNKKCCOODDEE    Specify the Kanji code for the string passed
                   to the pseudo terminal.  The string, which is
                   converted from the Kanji code specified by
                   IINNPPUUTTKKCCOODDEE to the Kanji code specified by this
                   command, is inputted to any processes running
                   on the pseudo terminal.  This variable has the
                   individual value for each pseudo terminal, so
                   that you should change value of the variable
                   on the pseudo terminal to change the input
                   Kanji code of the pseudo terminal running al-
                   ready.  ((UUNNIIXX))
                       SSJJIISS, ssjjiiss     Shift JIS
                       EEUUCC, eeuucc       EUC-JP
                       UUTTFF88, uuttff88     UTF-8
                       UUTTFF88--mmaacc, mmaacc  UTF-8 for Mac OS X
                       UUTTFF88--iiccoonnvv     UTF-8 for iconv
                       default        no convert

     PPTTYYMMEENNUUKKEEYY    Specify the key to open the pseudo terminal
                   menu while you are handling the pseudo termi-
                   nal.  You can describe the same key name as
                   bbiinndd command.  You can select the following
                   items in the pseudo terminal menu: "SendAsIs",
                   "InputCode", "Break", "NextWindow" and "Kanji".
                   Each item means respectively: sending the pseu-
                   do terminal menu key as is, inputting the key
                   name to be sent, terminating forcedly the pro-
                   cess running in the pseudo terminal, changing
                   to the next window, invoking the Kana-Kanji
                   IME.  In "InputCode", you can use the key name
                   like as bbiinndd command, and also the Kanji code
                   number used in the Kana-Kanji IME mode.  But
                   you cannot select "NextWindow" in the non-
                   split window mode.  The default value is not
                   specified.  ((UUNNIIXX))

     PPTTYYMMOODDEE       Use the pseudo terminal to invoke external com-
                   mands.  In the split window mode, the independ-
                   ent pseudo terminals for every windows will be
                   opened and enable you to handle simultaneously
                   multiple external commands via terminals.  If
                   the terminal in use can not provide some func-
                   tions required for the terminal emulation, the
                   pseudo terminal may not work correctly.  Any
                   value except 00 and null effects valid.  ((UUNNIIXX))

     PPTTYYOOUUTTKKCCOODDEE   Specify the Kanji code for the string passed
                   from the pseudo terminal.  The string, which
                   is converted from the Kanji code specified by
                   this command to the Kanji code specified by
                   LLAANNGGUUAAGGEE, is displayed from any processes run-
                   ning on the pseudo terminal.  This variable
                   has the individual value for each pseudo termi-
                   nal, so that you should change value of the
                   variable on the pseudo terminal to change the
                   output Kanji code of the pseudo terminal run-
                   ning already.  ((UUNNIIXX))
                       SSJJIISS, ssjjiiss     Shift JIS
                       EEUUCC, eeuucc       EUC-JP
                       UUTTFF88, uuttff88     UTF-8
                       UUTTFF88--mmaacc, mmaacc  UTF-8 for Mac OS X
                       UUTTFF88--iiccoonnvv     UTF-8 for iconv
                       default        no convert

     PPTTYYTTEERRMM       Specify the value of TTEERRMM the environment vari-
                   able to be passed to external commands, when
                   you use the pseudo terminal.  Some tteerrmmccaapp(5)
                   or tteerrmmiinnffoo(5) may cause unexpected behavior
                   of the pseudo terminal, you should specify the
                   effective terminal name in your environment.
                   The default value is vvtt110000.  ((UUNNIIXX))

     PPWWDD*          The variable for the current directory with
                   the absolute representation.  If some value is
                   set, this value will be replaced automatically
                   according to changing the current directory.
                   If no value is set, this value will remain un-
                   set.  If this is passed as an environment var-
                   iable when invoked, and this value and the cur-
                   rent directory indicate the same directory log-
                   ically, then it is used as the default value
                   for the current directory.  It is useful when
                   you want to specify the logical pathname fol-
                   lowing symbolic links.

     RROOOOTTLLOOGGLLEEVVEELL  Specify the priority for the log contents of
                   the super user.  The default value is 11.
                   ((UUNNIIXX))
                       00       no log
                       11       only warning such as writing
                       22       notice such as changing, and over
                       33       info. such as refering, and over
                       >= 44    debug level, and over

                   The same operation can result as an error to
                   output the log in the lower priority by 1 lev-
                   el.
     RRRRPPAATTHH        Display files under the directory mounted by
                   CD-ROM, with the pseudo ISO 9660 RockRidge
                   Extension, for the OS which cannot support
                   RockRidge Extension.  You can specify multiple
                   mount points separating with '::'.  You are
                   enough to specify only the top directory
                   mounted by CD-ROM, then the pseudo RockRidge
                   Extension function is valid in all of the
                   directories under that directory.  This is no
                   more than a pseudo extension, which only
                   replaces filenames according to TRANS.TBL, and
                   cannot handle some CD-ROM which has an incon-
                   sistent TRANS.TBL.  No mount point is speci-
                   fied by default.

     SSAAVVEEDDIIRRHHIISSTT   Specify the maximum number saved to the direc-
                   tory history file.  The default value is 5500.
                   If this value is 00, no directory history file
                   is saved.

     SSAAVVEEHHIISSTT      Specify the maximum number saved to the com-
                   mand history file.  The default value is 5500.
                   If this value is 00, no command history file is
                   saved.

     SSEECCOONNDD        Display the second in the clock of the title
                   line.  But the clock is adjusted correctly
                   every 1100 seconds, and some gap from the real
                   time will be occurred in this span.  Any value
                   except 00 and null effects valid.

     SSHHEELLLL         When the filename part of this specified value
                   is rrffdd or rrffddsshh, the shell becomes a res-
                   tricted shell as well as --rr option when
                   invoked.  This variable also specify the shell
                   which can be invoked from EEXXEECCUUTTEE_SSHH.

     SSIIZZEEIINNFFOO      Display the file size information line at the
                   top of screen.  The total size displayed here
                   is not the sum of bytes but the sum of disk
                   block size occupied actually.  Any value
                   except 00 and null effects valid.

     SSIIZZEEUUNNIITT      Represent the huge file size which overflows
                   the displayed digit with the prefix of the SI
                   unit, as "KB", "MB" and so on.  Any value ex-
                   cept 00 and null effects valid.

     SSOORRTTTTRREEEE      Sort directories in the tree screen.  The
                   sorted type specified by SSOORRTT_DDIIRR is used,
                   but they can not be sorted when it is "by
                   size" or "by timestamp".  The directory
                   included in the current directory path is
                   always placed on the top of directory tree,
                   with no regard to the sorted type.  Any value
                   except 00 and null effects valid.

     SSOORRTTTTYYPPEE      The file list in the browser screen is not
                   sorted by default, but placed in order
                   registered in the directory.  This variable
                   specify it to be sorted by default.  The fol-
                   lowing are specifiable values.
                       00    not sort
                       11    by filename    99    by filename(reverse)
                       22    by extension   1100   by extension(reverse)
                       33    by size        1111   by size(reverse)
                       44    by timestamp   1122   by timestamp(reverse)
                       55    by length      1133   by length(reverse)
                       110000--111133   keep the last sorted type
                       220000--221133   keep it also in archive browser

                   If you specify the value of 100-113, it is
                   sorted according to the value indicated by
                   lower 2 digits just after invoked, the last
                   specified sorted type is kept when moving
                   directory.  If you specify the value of 200-
                   213, the last sort type will be kept also
                   after invoking the archive browser.

     TTEERRMM*         Specity the terminal name.  When this value
                   is dduummbb, uunnkknnoowwnn or uunn, it is regarded as
                   the dumb terminal to suppress any escape
                   sequences in the internal shell in spite of
                   DDUUMMBBSSHHEELLLL.  If this value does not exist in
                   tteerrmmccaapp(5) and tteerrmmiinnffoo(5) entry, it is exe-
                   cutable only when it is invoked as ffddsshh.
                   The terminal name will be variable dynami-
                   cally, then you can re-specify the suitable
                   one as this value after invoked for some
                   strange terminal display and key input.

     TTHHRRUUAARRGGSS      Pass through the pathnames as is, which is
                   specified as the startup arguments.  FFdd ex-
                   pands the meta character such as ~~ and $${{##}} in
                   the given pathname by itself, because the ob-
                   solete low-level shell cannot support these
                   expansion extended by POSIX.  FFdd can sometimes
                   expand the pathname given by the shell into
                   the unexpected string as a result of duplicate
                   expansion, because the latest high-level shell
                   generally support these expansion.  This vari-
                   able will be suppress the expansion of argu-
                   ments.  Any value except 00 and null effects
                   valid.

     TTMMPPDDIIRR        Specify the working directory where the
                   archiver command temporarily unpack files in
                   the archive file.  The default value is //ttmmpp.

                   (On MS-DOS version, The default value is `..'.)

     TTMMPPUUMMAASSKK      Specify the file creation mask with octal
                   expression for files and directories created
                   temporarily in TTMMPPDDIIRR.  But the mask value set
                   by uummaasskk the builtin command is prior, then
                   actual mask value is the logical OR of this
                   value and uummaasskk value.

     TTRRAADDLLAAYYOOUUTT    Use the traditional screen layout based on the
                   original "FD".  In this layout, the file size
                   information will be always displayed, whether
                   SSIIZZEEIINNFFOO is set or not.  When the screen width
                   is less than 8800 columns, this specification is
                   invalid.  Any value except 00 and null effects
                   valid.

     UUNNIICCOODDEEBBUUFFFFEERR Hold the UNICODE translation table on memory.
                   It will be fast to access the floppy drive and
                   to translate from/to UTF-8.  You should set
                   this if you have enough memory.  Any value
                   except 00 and null effects valid.

     UURRLLDDRRIIVVEE      Validate the function of the URL drive.  Any
                   value except 00 and null effects valid.  ((UUNNIIXX))

     UURRLLKKCCOODDEE      Specify the Kanji code for filename on the
                   host with the URL drive.  JJIISS88, JJUUNNEETT, HHEEXX,
                   CCAAPP, etc. among them are the Kanji codes used
                   in Samba.  ((UUNNIIXX))
                       SSJJIISS, ssjjiiss     Shift JIS
                       EEUUCC, eeuucc       EUC-JP
                       JJIISS, jjiiss       7bit JIS
                       JJIISS88, jjiiss88     8bit JIS
                       JJUUNNEETT, jjuunneett   ISO-2022-JP
                       OOJJIISS, oojjiiss     7bit JIS (JIS C6226-1978 + roman)
                       OOJJIISS88, oojjiiss88   8bit JIS (JIS C6226-1978 + roman)
                       OOJJUUNNEETT, oojjuunneett ISO-2022-JP (JIS C6226-1978 + roman)
                       HHEEXX, hheexx       HEX
                       CCAAPP, ccaapp       CAP
                       UUTTFF88, uuttff88     UTF-8
                       UUTTFF88--mmaacc, mmaacc  UTF-8 for Mac OS X
                       UUTTFF88--iiccoonnvv     UTF-8 for iconv
                       default        no convert

     UURRLLOOPPTTIIOONNSS    Specify communication options, when the URL
                   drive communicates with the host.  You can se-
                   lect individually whether if PASV, PORT, MDTM,
                   FEAT each commands for the FTP communication
                   are limited or not, or whether if the exact
                   file information is need or not.  On the
                   HTTP protocol, you will get the timestamp and
                   size of files with some rounding error in bulk.
                   If you need the exact information, the opera-
                   tions by file will spend the more communica-
                   tion time.  The default value is 00.  The fol-
                   lowing are specifiable values.  ((UUNNIIXX))
                       00    standard
                       11    PASV
                       22            PORT
                       33    PASV &  PORT
                       44                    MDTM
                       55    PASV &          MDTM
                       66            PORT &  MDTM
                       77    PASV &  PORT &  MDTM
                       88                            FEAT
                       99    PASV &                  FEAT
                       1100           PORT &          FEAT
                       1111   PASV &  PORT &          FEAT
                       1122                   MDTM &  FEAT
                       1133   PASV &          MDTM &  FEAT
                       1144           PORT &  MDTM &  FEAT
                       1155   PASV &  PORT &  MDTM &  FEAT
                       1166                                   HTTP
                       1177   PASV &                          HTTP
                       1188           PORT &                  HTTP
                       1199   PASV &  PORT &                  HTTP
                       2200                   MDTM &          HTTP
                       2211   PASV &          MDTM &          HTTP
                       2222           PORT &  MDTM &          HTTP
                       2233   PASV &  PORT &  MDTM &          HTTP
                       2244                           FEAT &  HTTP
                       2255   PASV &                  FEAT &  HTTP
                       2266           PORT &          FEAT &  HTTP
                       2277   PASV &  PORT &          FEAT &  HTTP
                       2288                   MDTM &  FEAT &  HTTP
                       2299   PASV &          MDTM &  FEAT &  HTTP
                       3300           PORT &  MDTM &  FEAT &  HTTP
                       3311   PASV &  PORT &  MDTM &  FEAT &  HTTP

     UURRLLTTIIMMEEOOUUTT    Specify the timeout in seconds, when the URL
                   drive communicates with the host.  If the com-
                   munication from the host is lost for the time
                   specified, the communication is regarded as
                   invalid and its connection will be shutdown
                   forcedly.  If this value is 00 second, the time-
                   out operation is invalid to continue waiting
                   response forever.  The default value is 00 sec-
                   ond.  ((UUNNIIXX))

     UUSSEEGGEETTCCUURRSSOORR  Use the VT100 compatible escape sequence get-
                   ting the cursor position in order to get the
                   terminal size.  When the screen size of ffdd
                   doesn't correspond with the terminal size,
                   this variable can be sometimes valid.  On some
                   terminals which don't support the escape
                   sequence getting the cursor position, the
                   operation may be stopped.  In this case, it is
                   continued by inputting 'R' from the keyboard.
                   Any value except 00 and null effects valid.
                   ((UUNNIIXX))

     UUSSEESSYYSSLLOOGG     Send the log to ssyyssllooggdd(8) the system logger
                   with the level spacified by LLOOGGLLEEVVEELL or
                   RROOOOTTLLOOGGLLEEVVEELL.  The log priority is LOG_ERR
                   only some errors are caused, otherwise the log
                   priority is always LOG_INFO.  LOG_USER is used
                   as the facirity if it can be specified.  Any
                   value except 0 and null effects valid.  ((UUNNIIXX))

     WWIIDDEEDDIIGGIITT     Widen the displayed digits for the number of
                   pages and files.  The standard displayed dig-
                   its for the number of pages and files are 22
                   and 44 respectively.  This expands them into 44
                   and 55 respectively.  Any value except 00 and
                   null effects valid.

     WWRRIITTEEFFSS       Forbid use of WWRRIITTEE_DDIIRR command.  If the value
                   is 11, the directory is written only when the
                   command is executed intentionally, and you are
                   not confirmed after arranging the file order.
                   If the value is 22, even writing by the command
                   is invalid, the directory writing is quite
                   forbidden.

     SSJJIISSPPAATTHH
     EEUUCCPPAATTHH
     JJIISSPPAATTHH
     JJIISS88PPAATTHH
     JJUUNNEETTPPAATTHH
     OOJJIISSPPAATTHH
     OOJJIISS88PPAATTHH
     OOJJUUNNEETTPPAATTHH
     HHEEXXPPAATTHH
     CCAAPPPPAATTHH
     UUTTFF88PPAATTHH
     UUTTFF88MMAACCPPAATTHH
     UUTTFF88IICCOONNVVPPAATTHH
     NNOOCCOONNVVPPAATTHH    Specify the Kanji code for filename per direc-
                   tory, which is prior to FFNNAAMMEEKKCCOODDEE.  You can
                   specify multiple pathnames separating with
                   '::'.  You are enough to specify only the top
                   directory where you want to use the Kanji
                   code, then you can use the Kanji code in all
                   of the directories under that directory.  In
                   the directory which is described in
                   NNOOCCOONNVVPPAATTHH, no Kanji code is converted ignor-
                   ing the value of FFNNAAMMEEKKCCOODDEE.  No pathname is
                   specified by default.  ((UUNNIIXX))

MMUULLTTII LLAANNGGUUAAGGEE SSUUPPPPOORRTT
     FFdd processes the Kanji character-set to input/output as
     "EUC-JP" or "Shift JIS" according to setting in compile.
     The the pathname including Kanji is displayed in considera-
     tion for the 2nd byte character in Kanji.  You can dynami-
     cally select Kanji code to input/output with LLAANNGGUUAAGGEE,
     IINNPPUUTTKKCCOODDEE and FFNNAAMMEEKKCCOODDEE the internal variable.  You can
     input Japanese string with the Kana-Kanji IME mode.

     You can use Kanji in the command macro and the command
     string, but cannot use Kanji as the value of the internal
     variables.  You cannot use the multibyte symbol character as
     the meta character, such as '%%' and '""' and so on, Kanji
     character is not counted as 1 character in the wildcard
     search.

     And when you give the non-standard Kanji code for the OS to
     the shell with the parameter macro such as %%JJJJ, some Kanji
     is converted into the code including the meta character such
     as '$$' and '\\' and so on, to cause unexpected behavior.  In
     that case, you can probably avoid it by quoting the string
     to be converted with %%''.

AAUUTTHHOORR
     Takashi SHIRAI <shirai@unixusers.net>
     The original "FD" for MS-DOS was created and released by
     A.Idei <SDI00544@niftyserve.or.jp> for the first time, in
     1989.  FFdd was created for UNIX from scratch following that
     implementation, in 1995.

FFIILLEESS
     //eettcc//ffdd22rrcc
               The systemwide initial configuration file for ffdd
     ~~//..ffdd22rrcc  The individual initial configuration file for ffdd
     ~~//..ffddsshhrrcc The individual initial configuration file for ffddsshh
     ~~//..ffdd_hhiissttoorryy
               The command history file by default
     ~~//..ffdd_ffrreeqq
               The translation frequency file by default for the
               users Kana-Kanji translation learning
               Kanji translation learning
     //bbiinn//sshh   The user shell when SSHHEELLLL the environment variable
               is undefined
     //bbiinn//rrmm   The command to remove temporary files when abort
     //ttmmpp//ffdd**  The temporary directory to unpack the archive file
     ffdd--uunniiccdd..ttbbll
               The UNICODE translation table, which is installed
               in the same directory as the executable binary of
               ffdd
     ffdd--ddiicctt..ttbbll
               The Kana-Kanji translation dictionary file, which
               is installed in the same directory as the execut-
               able binary of ffdd

     ffdd22rrcc     The systemwide initial configuration file for ffdd
               on MS-DOS version, which must be prepared in the
               same directory as the executable binary of ffdd
     $$HHOOMMEE\\ffdd22..rrcc
               The individual initial configuration file for ffdd
               on MS-DOS version
     $$HHOOMMEE\\ffddsshh..rrcc
               The individual initial configuration file for ffddsshh
               on MS-DOS version
     $$HHOOMMEE\\ffdd..hhsstt
               The command history file on MS-DOS version by
               default

LLIIMMIITTAATTIIOONNSS
     Some terminals cannot send the input of certain function
     keys and special keys.  The sequence compatible with VVTT220000
     is assigned as the default sequence which is not registered
     in tteerrmmccaapp(5), and when the terminal cannot support this,
     the key receipt or the screen control due to be brought by
     this is not available.

SSEEEE AALLSSOO
     sshh(1), eecchhoo(1), tteesstt(1), llss(1), rrmm(1), ttaarr(1), ccoommpprreessss(1),
     zzccaatt(1), ggzziipp(1), gguunnzziipp(1), llhhaa(1), llooggiinn(1), nneewwggrrpp(1),
     ssttttyy(1), uummaasskk(2), tteerrmmccaapp(5), tteerrmmiinnffoo(5), ssyyssllooggdd(8)

BBUUGGSS
     When files in an archive file are packed with a pathname
     including "..", the archive browser cannot work normally.
     The symbolic links in an archive file cannot be unpacked
     individually.

     The user interface is cheap.

CCOOPPYYRRIIGGHHTT
     Copyright (C) 1995-2019 by Takashi SHIRAI