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.\" Copyright (c) 2000 by Michael Kerrisk (mtk.manpages@gmail.com)
.\"
.\" Permission is granted to make and distribute verbatim copies of this
.\" manual provided the copyright notice and this permission notice are
.\" preserved on all copies.
.\"
.\" Permission is granted to copy and distribute modified versions of this
.\" manual under the conditions for verbatim copying, provided that the
.\" entire resulting derived work is distributed under the terms of a
.\" permission notice identical to this one.
.\"
.\" Since the Linux kernel and libraries are constantly changing, this
.\" manual page may be incorrect or out-of-date. The author(s) assume no
.\" responsibility for errors or omissions, or for damages resulting from
.\" the use of the information contained herein.
.\"
.\" Formatted or processed versions of this manual, if unaccompanied by
.\" the source, must acknowledge the copyright and authors of this work.
.\" License.
.\" Created, 14 Dec 2000 by Michael Kerrisk
.\"
.\" Japanese Version Copyright (c) 2001 NAKANO Takeo all rights reserved.
.\" Translated 2001-03-31, NAKANO Takeo <nakano@apm.seikei.ac.jp>
.\" Updated 2005-02-26, Akihiro MOTOKI <amotoki@dd.iij4u.or.jp>
.\" Updated 2007-05-01, Akihiro MOTOKI, LDP v2.46
.\"
.TH BASENAME 3 2000-12-14 "GNU" "Linux Programmer's Manual"
.SH ̾
basename, dirname \- ѥ̾ϤƳʬФ
.SH
.nf
.B #include <libgen.h>
.sp
.BI "char *dirname(char *" path );
.BI "char *basename(char *" path );
.fi
.SH
ٹ:
.BR basename ()
ˤϰۤʤС 2¸ߤ롣ΡաפȤΤȡ
.LP
.BR dirname ()
.BR basename ()
ϡNULL ǽü줿ѥ̾ʸ
ǥ쥯ȥʬե̾ʬʬ䤹롣
̾ϡ
.BR dirname ()
ϺǸ '/' ޤǤʬ (Ǹ '/' ϴޤޤʤ) ֤
.BR basename ()
ϺǸ '/' ʹߤʬ֤
ʸˤĤ '/' ʸϡѥ̾ΰȤϤߤʤʤ
.PP
.I path
'/' ʸʤϡ
.BR dirname ()
ʸ "." ֤
.BR basename ()
.I path
ƱƤ֤
.I path
ʸ "/" ϡ
.BR dirname ()
.BR basename ()
ʸ "/" ֤
.I path
NULL ݥäꡢʸؤƤϡ
.BR dirname ()
.BR basename ()
ʸ "." ֤
.PP
.BR dirname ()
֤ʸ "/"
.BR basename ()
֤ʸ
˷礹ȡʥѥ̾롣
.PP
.BR dirname ()
.BR basename ()
ϡ
.I path
Ƥѹ뤳Ȥ롣
äơδؿƤӽФݤˤ
ԡϤΤ˾ޤ
.PP
δؿϡŪ˳Ƥ줿ؤΥݥ֤Ȥꡢ
ΰϸδؿƤӽФǾ뤫⤷ʤ
ޤδؿ
.I path
ΰʬؤݥ֤Ȥ⤢롣Τᡢ
.I path
ǻȤʸϡؿ֤ݥפˤʤޤǤ
ѹ free ꤹ٤ǤϤʤ
.PP
ʲΰϢ (SUSv2 ) ϡ
path Ф
.BR dirname ()
.BR basename ()
֤ʸɽΤǤ롣
.sp
.nf
.B
path dirname basename
"/usr/lib" "/usr" "lib"
"/usr/" "/" "usr"
"usr" "." "usr"
"/" "/" "/"
"." "." "."
".." "." ".."
.fi
.SH ֤
.BR dirname ()
.BR basename ()
ϡ NULL ǽü줿ʸؤΥݥ֤
.SH
POSIX.1-2001
.SH
.BR basename ()
ˤ 2ΰۤʤС롣
ĤϤǤ POSIX СǤꡢ
⤦Ĥ GNU СǤ롣
GNU СѤˤϰʲΤ褦ˤ롣
.br
.nf
.B " #define _GNU_SOURCE"
.br
.B " #include <string.h>"
.fi
GNU Сϰѹ뤳ȤϤʤ
.I path
'/'ξ϶ʸ֤
ä
.I path
"/" ξʸ֤
.BR dirname ()
ˤ GNU СϤʤ
.LP
glibc Ǥϡ
.I <libgen.h>
롼ɤ POSIX С
.BR basename ()
Ѥ졢ʳξ GNU СȤʤ롣
.SH Х
glibc POSIX СμǤϡƤѹ졢
("/usr/" ʤɤ) ʸꤵ
ơեȤ
С 2.2.1 glibc Ǥϡ glibc
.BR dirname ()
'/' ʸˤʤäƤѥ̾
NULL ȥơեȤ
.SH
.in +4n
.nf
char *dirc, *basec, *bname, *dname;
char *path = "/etc/passwd";
dirc = strdup(path);
basec = strdup(path);
dname = dirname(dirc);
bname = basename(basec);
printf("dirname=%s, basename=%s\\n", dname, bname);
.fi
.in
.SH Ϣ
.BR basename (1),
.BR dirname (1),
.BR feature_test_macros (7)
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