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.\" This manpage is Copyright (C) 1992 Drew Eckhardt;
.\"                               1993 Michael Haardt, Ian Jackson.
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.\" Modified 1993-07-24 by Rik Faith
.\" Modified 1996-04-26 by Nick Duffek <nsd@bbc.com>
.\" Modified 1996-11-06 by Eric S. Raymond <esr@thyrsus.com>
.\" Modified 1997-01-31 by Eric S. Raymond <esr@thyrsus.com>
.\" Modified 2004-06-23 by Michael Kerrisk <mtk.manpages@gmail.com>
.\"
.\" Japanese Version Copyright (c) 1997 HANATAKA Shinya
.\"         all rights reserved.
.\" Translated Fri Dec 12 00:32:12 JST 1997
.\"         by HANATAKA Shinya <hanataka@abyss.rim.or.jp>
.\" Updated & Modifed Sat Feb 12 11:20:18 JST 2005
.\"         by Yuichi SATO <ysato444@yahoo.co.jp>
.\"
.\"WORD:	symbolic link		ܥå
.\"WORD:	directory		ǥ쥯ȥ
.\"WORD:	soft link		եȡ
.\"WORD:	hard link		ϡɡ
.\"WORD:	dangling link		줿
.\"WORD:	sticky bit		ƥåӥå
.\"WORD:	ownership		ͭ
.\"WORD:	file system		ե롦ƥ
.\"WORD:	effective uid		¸桼ID
.\"WORD:	kernel			ͥ
.\"WORD:	entry			ȥ
.\"
.TH SYMLINK 2 2007-07-26 "Linux" "Linux Programmer's Manual"
.SH ̾
symlink \- ե˿̾դ
.SH 
.B #include <unistd.h>
.sp
.BI "int symlink(const char *" oldpath ", const char *" newpath );
.sp
.in -4n
glibc εǽޥ׷
.RB ( feature_test_macros (7)
):
.in
.sp
.ad l
.BR symlink ():
_BSD_SOURCE || _XOPEN_SOURCE\ >=\ 500 || _POSIX_C_SOURCE\ >=\ 200112L
.ad b
.SH 
.BR symlink ()

.I oldpath
ȤʸեƤȤƻ
.I newpath
Ȥܥå (symbolic link) 롣

ܥå󥯤ϼ¹Ի˲ᤵ졢
󥯤Ƥǥѥ֤ơΥѥé뤳Ȥǡ
եǥ쥯ȥã롣

ܥå󥯤ϥѥʬ
.I ..
ޤफ⤷ʤ (⤷󥯤κǽ˻Ѥ줿) 󥯤
¸ߤǥ쥯ȥοƥǥ쥯ȥ꤬Ȥ롣

ܥå󥯤 (եȡ (soft link) ȤƤФ)
¸ߤեؤƤ뤫⤷ʤ
¸ߤʤեؤƤ뤫⤷ʤ;
Ԥξϲ줿 (dangling link) ȤƤФ롣

ܥå󥯤ε (permission) ̵̣Ǥ;
󥯤פˤϽͭ (ownership) ̵뤵롣
󥯤κ̾ѹ׵ᤵ졢ĥ󥯤¸ߤ
ǥ쥯ȥ˥ƥåӥå (sticky bit)
.RB ( S_ISVTX )
ꤵƤˤϡͭΥåԤ롣

.I newpath
¸ߤˤϾ񤭤\fBʤ\fR
.SH ֤
ˤ 0 ֤顼ξˤ \-1 ֤
.I errno
Ŭڤꤵ롣
.SH 顼
.TP
.B EACCES
.I newpath
ޤǤǥ쥯ȥؤν񤭹ߤݤ줿
.I newpath
˴ޤޤƤǥ쥯ȥΤɤ줫˸ĤͿƤʤ
.RB ( path_resolution (7)
⻲Ȥ뤳)
.TP
.B EEXIST
.I newpath
¸ߤƤ롣
.TP
.B EFAULT
.IR oldpath "  " newpath " ǽʥɥ쥹֤γؤƤ롣"
.TP
.B EIO
I/O 顼ȯ
.TP
.B ELOOP
.I newpath
褹ݤܥå󥯤¿᤮롣
.TP
.B ENAMETOOLONG
.IR oldpath " ޤ " newpath " Ĺ᤮롣"
.TP
.B ENOENT
.I newpath
˴ޤޤǥ쥯ȥʬ¸ߤʤ줿󥯤Ǥ뤫
.I oldpath
ʸǤ롣
.TP
.B ENOMEM
ʬʥͥ (kernel) Υ꡼ʤ
.TP
.B ENOSPC
ե뤬ޤޤƤǥХ˿ǥ쥯ȥꡦȥ
(directory entry) νʬ̤ʤ
.TP
.B ENOTDIR
.I newpath
˴ޤޤǥ쥯ȥʬºݤˤϡǥ쥯ȥǤϤʤ
.TP
.B EPERM
.I newpath
ޤǤե롦ƥ (file system) 
ܥå󥯤κ򥵥ݡȤƤʤ
.TP
.B EROFS
.I newpath
ɤ߹ѤΥե롦ƥ¸ߤƤ롣
.SH 
SVr4, 4.3BSD, POSIX.1-2001.
.\" SVr4 ˤ¾ EDQUOT, ENOSYS 顼ˤĤƤεҤ롣
.\" .BR open (2)
.\" 򸫤ơƱ̾νʣ NFS ˤĤƻȤ뤳ȡ
.SH 
.I oldpath
ˤĤƤΥåϹԤʤʤ

symlink ˤäƻȤ̾ (줬¾˥ϡɡ
(hard link) ʤ) ºݤ˥ե뤬롣
ư˾ΤǤʤϡ
.BR link (2)
Ѥ뤳ȡ
.SH Ϣ
.BR ln (1),
.BR lchown (2),
.BR link (2),
.BR lstat (2),
.BR open (2),
.BR readlink (2),
.BR rename (2),
.BR symlinkat (2),
.BR unlink (2),
.BR path_resolution (7),
.BR symlink (7)