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.\" Copyright 1992,1993,1994 Rickard E. Faith (faith@cs.unc.edu)
.\" May be distributed under the GNU General Public License
.TH FRAG 8 "26 May 1994" "Linux 1.00" "Linux Programmer's Manual"
.SH NAME
frag \- simple fragmentation checker
.SH SYNOPSIS
.B /etc/frag
.B "[ \-l ] [ \-s [ \-s ]]"
filename ...
.SH DESCRIPTION
.B frag
will report the file system fragmentation on a specified
.IR filename .
If the
.I filename
is a directory,
.B frag
will recursively descend the directory.
.SH OPTIONS
.TP
.B \-l
Long mode. Lists the start and end blocks of all fragments of each
file scanned.
.TP
.B \-s
Silent (may be set to 1 or 2). The first
.B \-s
eliminates the file by file statistics, and just prints the
examined directories and a summary. The second
.B \-s
eliminates the printing of the directories, and just prints a
summary. This option is useful when
.B frag
is used on a directory.
.SH "SEE ALSO"
.BR e2dump (8),
.BR xdump (8),
.BR defrag (8),
.BR mkfs (8),
.BR fsck (8),
.BR mkefs (8),
.BR efsck (8)
.SH BUGS
.B frag
will get caught in an infinite loop in the /proc filesystem.
It is impossible to determine where a file's meta-data resides on disk
simply by accessing the mounted file, so some apparent fragments
reported by
.B frag
may be simply the result of low-level index blocks on disk. The
.B e2dump
and
.B xdump
programs can interrogate a partition directly to access this data and
to give more accurate results.
.SH AUTHORS
V1.0 by Werner Almesberger
.br
V1.1 by Steffen Zahn, adding directory recursion
.br
V1.2 by Rob Hooft, adding hole counts
.br
V1.3 by Steffen Zahn, ignore symlinks,
don't cross filesys borders, get filesystem block size at runtime
.br
V1.4 by Stephen Tweedie, added indirect block support and improved
statistic summaries. Added "-l" switch.
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