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[linuxjm/LDP_man-pages.git] / draft / man2 / mkdir.2

.\" Hey Emacs! This file is -*- nroff -*- source.
.\"
.\" This manpage is Copyright (C) 1992 Drew Eckhardt;
.\"                               1993 Michael Haardt
.\"                               1993,1994 Ian Jackson.
.\" You may distribute it under the terms of the GNU General
.\" Public License. It comes with NO WARRANTY.
.\"
.\" Japanese Version Copyright (c) 1997 SUTO, Mitsuaki
.\"         all rights reserved.
.\" Translated Thu Jun 26 20:47:26 JST 1997
.\"         by SUTO, Mitsuaki <suto@av.crl.sony.co.jp>
.\" Updated & Modified Fri Jan 22 1999
.\"         by NAKANO Takeo <nakano@apm.seikei.ac.jp>
.\" Updated Fri Sep 13 JST 2000 by Kentaro Shirakata <argrath@ub32.org>
.\" Updated Sun May 23 JST 2004 by Kentaro Shirakata <argrath@ub32.org>
.\" Updated Thu Mar 24 JST 2005 by Kentaro Shirakata <argrath@ub32.org>
.\" Updated Wed Jul 30 JST 2008 by Kentaro Shirakata <argrath@ub32.org>
.\"
.\"WORD:        permission      µö²Ä°À­
.\"WORD:        resolve         (¥Ñ¥¹Ì¾¤ò) ²ò·è¤¹¤ë
.\"
.TH MKDIR 2 2008-05-13 "Linux" "Linux Programmer's Manual"
.\"O .SH NAME
.SH ̾Á°
.\"O mkdir \- create a directory
mkdir \- ¥Ç¥£¥ì¥¯¥È¥ê¤òºîÀ®¤¹¤ë
.\"O .SH SYNOPSIS
.SH ½ñ¼°
.nf
.B #include <sys/stat.h>
.B #include <sys/types.h>
.\" .B #include <unistd.h>
.sp
.BI "int mkdir(const char *" pathname ", mode_t " mode );
.fi
.\"O .SH DESCRIPTION
.SH ÀâÌÀ
.\"O .BR mkdir ()
.\"O attempts to create a directory named
.\"O .IR pathname .
.BR mkdir ()
¤Ï
.I pathname
¤Ç¼¨¤µ¤ì¤ë̾Á°¤Î¥Ç¥£¥ì¥¯¥È¥ê¤òºîÀ®¤·¤è¤¦¤È¤¹¤ë¡£

.\"O The argument
.\"O .I mode
.\"O specifies the permissions to use.
.\"O It is modified by the process's
.\"O .I umask
.\"O in the usual way: the permissions of the created directory are
.\"O .RI ( mode " & ~" umask " & 0777)."
.I mode
°ú¤­¿ô¤Ï¡¢ºîÀ®¤µ¤ì¤¿¥Ç¥£¥ì¥¯¥È¥ê¤Îµö²Ä°À­¤ò·èÄꤹ¤ë¤Î¤Ë»È¤ï¤ì¤ë¡£
¤³¤ÎÃͤˡ¢Ä̾ïÄ̤ê¥×¥í¥»¥¹¤Î
.I umask
¤Ë¤è¤ë½¤Àµ¤¬²Ã¤¨¤é¤ì¤ë¡£
¤·¤¿¤¬¤Ã¤Æ¡¢ºîÀ®¤µ¤ì¤¿¥Ç¥£¥ì¥¯¥È¥ê¤Îµö²Ä°À­¤Ï
.RI ( mode " & ~" umask " & 0777)"
¤È¤Ê¤ë¡£
.\"O Other mode bits of the created directory depend on the operating system.
.\"O For Linux, see below.
ºîÀ®¤µ¤ì¤¿¥Ç¥£¥ì¥¯¥È¥ê¤Î¤½¤Î¾¤Î¥â¡¼¥É¥Ó¥Ã¥È¤Ï¥ª¥Ú¥ì¡¼¥Æ¥£¥ó¥°¥·¥¹¥Æ¥à¤Ë
°Í¸¤¹¤ë¡£Linux ¤Î¾ì¹ç¤Ï¡¢°Ê²¼¤ÎÄ̤ê¤Ç¤¢¤ë¡£

.\"O The newly created directory will be owned by the effective user ID of the
.\"O process.
.\"O If the directory containing the file has the set-group-ID
.\"O bit set, or if the file system is mounted with BSD group semantics
.\"O .RI ( "mount -o bsdgroups"
.\"O or, synonymously
.\"O .IR "mount -o grpid" ),
.\"O the new directory will inherit the group ownership from its parent;
.\"O otherwise it will be owned by the effective group ID of the process.
¿·¤·¤¯ºîÀ®¤µ¤ì¤¿¥Ç¥£¥ì¥¯¥È¥ê¤Î½êÍ­¼Ô¤Ï¥×¥í¥»¥¹¤Î¼Â¸ú¥æ¡¼¥¶ ID ¤ËÀßÄꤵ¤ì¤ë¡£
¿·¤¿¤ËºîÀ®¤µ¤ì¤¿¥Ç¥£¥ì¥¯¥È¥ê¤¬´Þ¤Þ¤ì¤ë¿Æ¥Ç¥£¥ì¥¯¥È¥ê¤Ë
set group ID ¥Ó¥Ã¥È¤¬¥»¥Ã¥È¤µ¤ì¤Æ¤¤¤¿¤ê¡¢¥Õ¥¡¥¤¥ë¥·¥¹¥Æ¥à¤¬ BSD ¤Î
¥°¥ë¡¼¥×¥»¥Þ¥ó¥Æ¥£¥¯¥¹
.RI ( "mount -o bsdgroups"
¤¢¤ë¤¤¤Ï¡¢Æ±¤¸°ÕÌ£¤Î
.IR "mount -o grpid" )
¤Ë½¾¤Ã¤Æ¥Þ¥¦¥ó¥È¤µ¤ì¤Æ¤¤¤ë¾ì¹ç¤Ë¤Ï¡¢
¿·¤¿¤ËºîÀ®¤µ¤ì¤¿¥Ç¥£¥ì¥¯¥È¥ê¤Î¥°¥ë¡¼¥×½êÍ­¸¢¤Ï¿Æ¥Ç¥£¥ì¥¯¥È¥ê¤Î
¤â¤Î¤¬·Ñ¾µ¤µ¤ì¤ë (¿Æ¥Ç¥£¥ì¥¯¥È¥ê¤ÈƱ¤¸¤Ë¤Ê¤ë)¡£
¤½¤ì°Ê³°¤Î¾ì¹ç¤Ï¡¢¥°¥ë¡¼¥×½êÍ­¸¢¤Ï¥×¥í¥»¥¹¤Î¼Â¸ú¥°¥ë¡¼¥× ID ¤È¤Ê¤ë¡£

.\"O If the parent directory has the set-group-ID bit set then so will the
.\"O newly created directory.
¤â¤·¿Æ¥Ç¥£¥ì¥¯¥È¥ê¤Ë set group ID ¥Ó¥Ã¥È¤¬¥»¥Ã¥È¤µ¤ì¤Æ¤¤¤ì¤Ð¿·¤·¤¯ºîÀ®¤µ¤ì¤ë
¥Ç¥£¥ì¥¯¥È¥ê¤Ë¤â set group ID ¥Ó¥Ã¥È¤¬¥»¥Ã¥È¤µ¤ì¤ë¡£
.\"O .SH "RETURN VALUE"
.SH ÊÖ¤êÃÍ
.\"O .BR mkdir ()
.\"O returns zero on success, or \-1 if an error occurred (in which case,
.\"O .I errno
.\"O is set appropriately).
.BR mkdir ()
¤ÏÀ®¸ù¤·¤¿¾ì¹ç 0 ¤ò¡¢¼ºÇÔ¤·¤¿¾ì¹ç \-1 ¤òÊÖ¤¹ (¤Þ¤¿¡¢
.I errno
¤¬¥¨¥é¡¼¤ÎÆâÍƤˤ·¤¿¤¬¤Ã¤ÆŬÀÚ¤ËÀßÄꤵ¤ì¤ë)¡£
.\"O .SH ERRORS
.SH ¥¨¥é¡¼
.TP
.B EACCES
.\"O The parent directory does not allow write permission to the process,
.\"O or one of the directories in
.\"O .I pathname
.\"O did not allow search permission.
.\"O (See also
.\"O .BR path_resolution (7).)
¥×¥í¥»¥¹¤¬¿Æ¥Ç¥£¥ì¥¯¥È¥ê¤Ø¤Î½ñ¤­¹þ¤ßµö²Ä¤ò»ý¤¿¤Ê¤¤¡¢¤â¤·¤¯¤Ï
.I pathname
Ãæ¤Î¥Ç¥£¥ì¥¯¥È¥ê¤Î¤É¤ì¤«¤Ë¸¡º÷µö²Ä°À­¤¬Ìµ¤¤
.RB ( path_resolution (7)
¤â»²¾È)¡£
.TP
.B EEXIST
.\"O .I pathname
.\"O already exists (not necessarily as a directory).
.I pathname
¤¬´û¤Ë¸ºß¤·¤Æ¤¤¤ë(¤¿¤À¤·¤½¤ì¤¬¥Ç¥£¥ì¥¯¥È¥ê¤Ç¤¢¤ë¤È¤Ï¸Â¤é¤Ê¤¤)¡£
.\"O This includes the case where
.\"O .I pathname
.\"O is a symbolic link, dangling or not.
.I pathname
¤¬¥·¥ó¥Ü¥ê¥Ã¥¯¥ê¥ó¥¯¤Î¾ì¹ç¤â
(¤½¤Î»ØÄêÀ褬¸ºß¤¹¤ë¤«¤É¤¦¤«¤Ë´Ø¤é¤º)¥¨¥é¡¼¤Ë¤Ê¤ë¡£
.TP
.B EFAULT
.\"O .IR pathname " points outside your accessible address space."
.I pathname
¤¬¤½¤Î¥×¥í¥»¥¹¤Î¥¢¥¯¥»¥¹²Äǽ¤Ê¥¢¥É¥ì¥¹¶õ´Ö¤Î³°¤ò»Ø¤·¤Æ¤¤¤ë¡£
.TP
.B ELOOP
.\"O Too many symbolic links were encountered in resolving
.\"O .IR pathname .
¥Ñ¥¹Ì¾
.I pathname
¤ò²ò·è¤¹¤ë¤È¤­¤Ë¡¢²ò·è¤¹¤Ù¤­¥·¥ó¥Ü¥ê¥Ã¥¯¥ê¥ó¥¯¤¬Â¿¤¹¤®¤¿¡£
.TP
.B ENAMETOOLONG
.\"O .IR pathname " was too long."
.I pathname
¤¬Ä¹¤¹¤®¤ë¡£
.TP
.B ENOENT
.\"O A directory component in
.\"O .I pathname
.\"O does not exist or is a dangling symbolic link.
.I pathname
¤Î¹½À®Í×ÁǤΥǥ£¥ì¥¯¥È¥ê¤Î¤¤¤º¤ì¤«¤¬Â¸ºß¤·¤Ê¤¤¤«¡¢
¤Þ¤¿¤Ï¥ê¥ó¥¯À褬¸ºß¤·¤Ê¤¤¥·¥ó¥Ü¥ê¥Ã¥¯¥ê¥ó¥¯¤Ç¤¢¤ë¡£
.TP
.B ENOMEM
.\"O Insufficient kernel memory was available.
¥«¡¼¥Í¥ë¤Ë¡¢ÍøÍѤǤ­¤ë¥á¥â¥ê¤¬ÉÔ­¤·¤Æ¤¤¤ë¡£
.TP
.B ENOSPC
.\"O The device containing
.\"O .I pathname
.\"O has no room for the new directory.
.I pathname
¤ò´Þ¤à¥Ç¥Ð¥¤¥¹¤Ë¿·¤¿¤Ë¥Ç¥£¥ì¥¯¥È¥ê¤òºîÀ®¤¹¤ë¶õ¤­¤¬Ìµ¤¤¡£
.TP
.B ENOSPC
.\"?? ENOSPC ¤¬¥À¥Ö¤Ã¤Æ¤¤¤ë¤±¤É...
.\"O The new directory cannot be created because the user's disk quota is
.\"O exhausted.
¤â¤·¤¯¤Ï¥æ¡¼¥¶¡¼¤Î¥Ç¥£¥¹¥¯ quota ¤¬»È¤¤ÀÚ¤é¤ì¤Æ¤¤¤ë¤¿¤á¡¢
¿·¤¿¤Ë¥Ç¥£¥ì¥¯¥È¥ê¤òºîÀ®¤¹¤ë¤³¤È¤¬¤Ç¤­¤Ê¤¤¡£
.TP
.B ENOTDIR
.\"O A component used as a directory in
.\"O .I pathname
.\"O is not, in fact, a directory.
.I pathname
Ãæ¤Î¥Ç¥£¥ì¥¯¥È¥êÉôʬ¤¬¼ÂºÝ¤Ë¤Ï¥Ç¥£¥ì¥¯¥È¥ê¤Ç¤Ê¤¤¡£
.TP
.B EPERM
.\"O The file system containing
.\"O .I pathname
.\"O does not support the creation of directories.
.I pathname
¤ò´Þ¤à¥Õ¥¡¥¤¥ë¥·¥¹¥Æ¥à¤¬¥Ç¥£¥ì¥¯¥È¥ê¤ÎºîÀ®¤ò¥µ¥Ý¡¼¥È¤·¤Æ¤¤¤Ê¤¤¡£
.TP
.B EROFS
.\"O .I pathname
.\"O refers to a file on a read-only file system.
.I pathname
¤¬Æɤ߽Ф·ÀìÍÑ¥Õ¥¡¥¤¥ë¥·¥¹¥Æ¥à¾å¤Î¥Õ¥¡¥¤¥ë¤ò»Ø¤·¤Æ¤¤¤ë¡£
.\"O .SH "CONFORMING TO"
.SH ½àµò
.\"O SVr4, BSD, POSIX.1-2001.
.\"O .\" SVr4 documents additional EIO, EMULTIHOP
SVr4, BSD, POSIX.1-2001.
.\" SVr4 ¤Ë¤Ï¤µ¤é¤Ë¥¨¥é¡¼¥³¡¼¥É EIO, EMULTIHOP ¤Ë¤Ä¤¤¤Æ¤Îµ­½Ò¤¬¤¢¤ë¡£
.\"O .SH NOTES
.SH Ãí°Õ
.\"O Under Linux apart from the permission bits, only the
.\"O .B S_ISVTX
.\"O mode bit is honored.
.\"O That is, under Linux the created directory actually gets mode
.\"O .RI ( mode " & ~" umask " & 01777)."
.\"O See also
.\"O .BR stat (2).
Linux ¤Ç¤Ï¡¢µö²Ä¥Ó¥Ã¥È°Ê³°¤Ç°ÕÌ£¤ò»ý¤Ä¤Î¤Ï¡¢
.B S_ISVTX
¥â¡¼¥É¥Ó¥Ã¥È¤À¤±¤Ç¤¢¤ë¡£
¤Ä¤Þ¤ê¡¢Linux ¤Ç¤ÏºîÀ®¤µ¤ì¤¿¥Ç¥£¥ì¥¯¥È¥ê¤Ï¼ÂºÝ¤Ë¤Ï
.RI ( mode " & ~" umask " & 01777)"
¤Î¥â¡¼¥É¤ò»ý¤Ä¤³¤È¤Ë¤Ê¤ë¡£
.BR stat (2)
¤ò»²¾È¤Î¤³¤È¡£
.PP
.\"O There are many infelicities in the protocol underlying NFS.
.\"O Some of these affect
.\"O .BR mkdir ().
NFS ¤ò¼Â¸½¤·¤Æ¤¤¤ë¥×¥í¥È¥³¥ë¤Ë¤Ï¿¤¯¤ÎÉÔÈ÷¤¬Â¸ºß¤·¡¢
¤½¤ì¤éÃæ¤Ë¤Ï
.BR mkdir ()
¤Ë±Æ¶Á¤òÍ¿¤¨¤ë¤â¤Î¤â¤¢¤ë¡£
.\"O .SH "SEE ALSO"
.SH ´ØÏ¢¹àÌÜ
.BR mkdir (1),
.BR chmod (2),
.BR chown (2),
.BR mkdirat (2),
.BR mknod (2),
.BR mount (2),
.BR rmdir (2),
.BR stat (2),
.BR umask (2),
.BR unlink (2),
.BR path_resolution (7)