(split) LDP man-pages の original/ を v3.32 に更新。

[linuxjm/LDP_man-pages.git] / draft / man7 / environ.7

.\" Copyright (c) 1993 Michael Haardt (michael@moria.de),
.\"   Fri Apr  2 11:32:09 MET DST 1993
.\" and Andries Brouwer (aeb@cwi.nl), Fri Feb 14 21:47:50 1997.
.\"
.\" This is free documentation; you can redistribute it and/or
.\" modify it under the terms of the GNU General Public License as
.\" published by the Free Software Foundation; either version 2 of
.\" the License, or (at your option) any later version.
.\"
.\" The GNU General Public License's references to "object code"
.\" and "executables" are to be interpreted as the output of any
.\" document formatting or typesetting system, including
.\" intermediate and printed output.
.\"
.\" This manual is distributed in the hope that it will be useful,
.\" but WITHOUT ANY WARRANTY; without even the implied warranty of
.\" MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
.\" GNU General Public License for more details.
.\"
.\" You should have received a copy of the GNU General Public
.\" License along with this manual; if not, write to the Free
.\" Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111,
.\" USA.
.\"
.\" Modified Sun Jul 25 10:45:30 1993 by Rik Faith (faith@cs.unc.edu)
.\" Modified Sun Jul 21 21:25:26 1996 by Andries Brouwer (aeb@cwi.nl)
.\" Modified Mon Oct 21 17:47:19 1996 by Eric S. Raymond (esr@thyrsus.com)
.\" Modified Wed Aug 27 20:28:58 1997 by Nicolas Lichtmaier (nick@debian.org)
.\" Modified Mon Sep 21 00:00:26 1998 by Andries Brouwer (aeb@cwi.nl)
.\" Modified Wed Jan 24 06:37:24 2001 by Eric S. Raymond (esr@thyrsus.com)
.\" Modified Thu Dec 13 23:53:27 2001 by Martin Schulze <joey@infodrom.org>
.\"
.\" nakano Ãí: Nicolas ¤µ¤ó¤Î a ¤Ï¥ª¥ê¥¸¥Ê¥ë¤Ç¤Ï \'a ¤À¤¬,
.\" ¥­¥ã¥é¥¯¥¿¤ò²õ¤¹¤Î¤Ç a ¤ËÊѹ¹¤·¤¿.
.\"
.\" Japanese Version Copyright (c) 1997 KURODA Masaru all rights reserved.
.\" Translated May 27, 1997 by KURODA Masaru <kuro@st.rim.or.jp>
.\" Modified Sat 25 Jul 1998 by NAKANO Takeo <nakano@apm.seikei.ac.jp>
.\" Modified Sun 6 Dec 1998 by NAKANO Takeo <nakano@apm.seikei.ac.jp>
.\" Updated & Modified Sat Aug 21 1999
.\"       by NAKANO Takeo <nakano@apm.seikei.ac.jp>
.\" Updated & Modified Sat 18 Mar 2000 by NAKANO Takeo
.\" Updated Sat Dec 22 JST 2001 by Kentaro Shirakata <argrath@ub32.org>
.\" Updated Sat Mar 23 JST 2002 by Kentaro Shirakata <argrath@ub32.org>
.\" Updated 2010-04-11, Akihiro MOTOKI <amotoki@dd.iij4u.or.jp>, LDP v3.24
.\"
.\"WORD:        environment             ´Ä¶­
.\"WORD:        environment variable    ´Ä¶­ÊÑ¿ô
.\"WORD:        shell variable          ¥·¥§¥ëÊÑ¿ô
.\"WORD:        locale                  ¥í¥±¡¼¥ë
.\"WORD:        locale category         ¥í¥±¡¼¥ë¥«¥Æ¥´¥ê
.\"
.TH ENVIRON 7 2009-07-25 "Linux" "Linux Programmer's Manual"
.\"O .SH NAME
.\"O environ \- user environment
.SH ̾Á°
environ \- ¥æ¡¼¥¶´Ä¶­
.\"O .SH SYNOPSIS
.SH ½ñ¼°
.nf
.BI "extern char **" environ ;
.br
.fi
.\"O .SH DESCRIPTION
.SH ÀâÌÀ
.\"O The variable
.\"O .I environ
.\"O points to an array of pointers to strings called the "environment".
.\"O The last pointer in this array has the value NULL.
.\"O (This variable must be declared in the user program,
.\"O but is declared in the header file
.\"O .I <unistd.h>
.\"O in case the header files came from libc4 or libc5, and
.\"O in case they came from glibc and
.\"O .B _GNU_SOURCE
.\"O was defined.)
.\"O This array of strings is made available to the process by the
.\"O .BR exec (3)
.\"O call that started the process.
ÊÑ¿ô
.I environ
¤Ï¡Ö´Ä¶­ (environment)¡×¤È¸Æ¤Ð¤ì¤ëʸ»úÎó¤Ø¤Î¥Ý¥¤¥ó¥¿¤ÎÇÛÎó¤Ç¤¢¤ë¡£
¤³¤ÎÇÛÎó¤ÎºÇ¸å¤Î¥Ý¥¤¥ó¥¿¤ÎÃÍ¤Ï NULL ¤Ç¤¢¤ë¡£
(¤³¤ÎÊÑ¿ô¤Ï¥æ¡¼¥¶¡¼¥×¥í¥°¥é¥à¤ÇÀë¸À¤·¤Ê¤±¤ì¤Ð¤Ê¤é¤Ê¤¤¡£
¤¿¤À¤· libc4 ¤ä libc5 ¤Î¥Ø¥Ã¥À¡¼¥Õ¥¡¥¤¥ë¤Ê¤é
.I <unistd.h>
¤ÇÀë¸À¤µ¤ì¤Æ¤¤¤ë¤·¡¢¤³¤ì¤¬ glibc ͳÍè¤Î¤â¤Î¤Ç¤â
.B _GNU_SOURCE
¤¬ define ¤µ¤ì¤Æ¤¤¤ì¤ÐÀë¸ÀºÑ¤ß¤È¤Ê¤ë)¡£
¤³¤Îʸ»úÎóÇÛÎó¤Ï¡¢
¥×¥í¥»¥¹¤òµ¯Æ°¤¹¤ë
.BR exec (3)
¤Ë¤è¤Ã¤Æ¡¢¤½¤Îµ¯Æ°¤µ¤ì¤¿¥×¥í¥»¥¹¤ÇÍøÍѤǤ­¤ë¤è¤¦¤Ë¤Ê¤ë¡£

.\"O By convention the strings in
.\"O .I environ
.\"O have the form "\fIname\fP\fB=\fP\fIvalue\fP".
.\"O Common examples are:
ÄÌÎã¤Ç¤Ï¡¢
.I environ
¤Îʸ»úÎó¤Ï "\fIname\fP\fB=\fP\fIvalue\fP" ¤È¤¤¤¦½ñ¼°¤ò¤È¤ë¡£
¤è¤¯ÍѤ¤¤é¤ì¤ëÎã¤ò°Ê²¼¤Ë¼¨¤¹¡£
.TP
.B USER
.\"O The name of the logged-in user (used by some BSD-derived programs).
¥æ¡¼¥¶¤Î¥í¥°¥¤¥ó̾ (BSD µ¯¸»¤Î¥×¥í¥°¥é¥à¤Ê¤É¤Ë¤è¤Ã¤Æ»ÈÍѤµ¤ì¤ë)¡£
.TP
.B LOGNAME
.\"O The name of the logged-in user (used by some System-V derived programs).
¥æ¡¼¥¶¤Î¥í¥°¥¤¥ó̾(System V µ¯¸»¤Î¥×¥í¥°¥é¥à¤Ê¤É¤Ë¤è¤Ã¤Æ»ÈÍѤµ¤ì¤ë)¡£
.TP
.B HOME
.\"O A user's login directory, set by
.\"O .BR login (1)
.\"O from the password file
.\"O .BR passwd (5).
¥æ¡¼¥¶¤Î¥í¥°¥¤¥ó¥Ç¥£¥ì¥¯¥È¥ê¡£
.BR login (1)
¤¬¥Ñ¥¹¥ï¡¼¥É¥Õ¥¡¥¤¥ë
.BR passwd (5)
¤«¤é¼èÆÀ¤·¤ÆÀßÄꤹ¤ë¡£
.TP
.B LANG
.\"O The name of a locale to use for locale categories when not overridden
.\"O by \fBLC_ALL\fP or more specific environment variables like
.\"O \fBLC_COLLATE\fP, \fBLC_CTYPE\fP, \fBLC_MESSAGES\fP, \fBLC_MONETARY\fP,
.\"O \fBLC_NUMERIC\fP, \fBLC_TIME\fP, cf.
.\"O .BR locale (5).
¥í¥±¡¼¥ë¤Î³Æ¥«¥Æ¥´¥ê¤Ç»ÈÍѤµ¤ì¤ë¥í¥±¡¼¥ë¤Î̾Á°¡£\fBLC_ALL\fP ¤ä¡¢
¤è¤ê¶¹¤¤ÈϰϤòÂоݤȤ¹¤ë´Ä¶­ÊÑ¿ô
.RB ( LC_COLLATE ,
.BR LC_CTYPE ,
.BR LC_MESSAGES ,
.BR LC_MONETARY ,
.BR LC_NUMERIC ,
.B LC_TIME
¤Ê¤É)
¤Ë¤è¤Ã¤Æ¾å½ñ¤­¤µ¤ì¤ë¤³¤È¤â¤¢¤ë¡£
.BR locale (5)
¤ò¸«¤è¡£
.TP
.B PATH
.\"O The sequence of directory prefixes that
.\"O .BR sh (1)
.\"O and many other
.\"O programs apply in searching for a file known by an incomplete pathname.
.\"O The prefixes are separated by \(aq\fB:\fP\(aq.
.\"O (Similarly one has \fBCDPATH\fP used by some shells to find the target
.\"O of a change directory command, \fBMANPATH\fP used by
.\"O .BR man (1)
.\"O to
.\"O find manual pages, etc.)
.BR sh (1)
¤ä¾¤Î¥×¥í¥°¥é¥à¤¬¡¢¥Õ¥ë¥Ñ¥¹¤ÇÍ¿¤¨¤é¤ì¤Ê¤«¤Ã¤¿¼Â¹Ô¥Õ¥¡¥¤¥ë¤ò¸¡º÷¤¹¤ë¤È¤­¡¢
¥Õ¥¡¥¤¥ë̾¤ËÁ°ÃÖ¤µ¤ì¤ë¥Ç¥£¥ì¥¯¥È¥ê¤ÎÇÛÎó¡£
³Æ¥Ç¥£¥ì¥¯¥È¥ê¤Ï \(aq\fB:\fP\(aq ¤Ë¤è¤Ã¤Æ¶èÀÚ¤é¤ì¤ë¡£
(Ʊ¤¸¤è¤¦¤Ê¤â¤Î¤Ë¡¢
¥·¥§¥ë¤¬¥Ç¥£¥ì¥¯¥È¥êÊѹ¹¥³¥Þ¥ó¥É¤ÎÊѹ¹Àè¤òõ¤¹¤¿¤á¤ËÍѤ¤¤ë
\fBCDPATH\fP ¤ä¡¢
.BR man (1)
¤¬¥Þ¥Ë¥å¥¢¥ë¥Ú¡¼¥¸¤Î¸¡º÷¤ËÍѤ¤¤ë \fBMANPATH\fP ¤Ê¤É¤¬¤¢¤ë¡£)
.TP
.B PWD
.\"O The current working directory.
.\"O Set by some shells.
¸½ºß¤Î¥ï¡¼¥­¥ó¥°¥Ç¥£¥ì¥¯¥È¥ê¡£¤¤¤¯¤Ä¤«¤Î¥·¥§¥ë¤¬ÀßÄꤹ¤ë¡£
.TP
.B SHELL
.\"O The pathname of the user's login shell.
¥æ¡¼¥¶¡¼¤Î¥í¥°¥¤¥ó¥·¥§¥ë¤Î¥Ñ¥¹Ì¾¡£
.TP
.B TERM
.\"O The terminal type for which output is to be prepared.
üËö¤Î¼ïÎà¡£½ÐÎϤϤ³¤ì¤Ë¤¢¤ï¤»¤ÆÍÑ°Õ¤µ¤ì¤ë¡£
.TP
.B PAGER
.\"O The user's preferred utility to display text files.
¥Æ¥­¥¹¥È¥Õ¥¡¥¤¥ë¤òɽ¼¨¤¹¤ë¥æ¡¼¥Æ¥ê¥Æ¥£¡£¥æ¡¼¥¶¡¼¤¬¹¥¤ß¤Î¤â¤Î¤òÀßÄꤹ¤ë¡£
.TP
.BR EDITOR / VISUAL
.\"O The user's preferred utility to edit text files.
¥Æ¥­¥¹¥È¥Õ¥¡¥¤¥ë¤òÊÔ½¸¤¹¤ë¥æ¡¼¥Æ¥ê¥Æ¥£¡£¥æ¡¼¥¶¡¼¤¬¹¥¤ß¤Î¤â¤Î¤òÀßÄꤹ¤ë¡£
.\" .TP
.\" .B BROWSER
.\"O .\" The user's preferred utility to browse URLs. Sequence of colon-separated
.\"O .\" browser commands. See http://www.catb.org/~esr/BROWSER/ .
.\" URL ¤Î±ÜÍ÷¤ËÍѤ¤¤ë¥æ¡¼¥Æ¥£¥ê¥Æ¥£¡£¥æ¡¼¥¶¡¼¤¬¹¥¤ß¤Î¤â¤Î¤òÀßÄꤹ¤ë¡£
.\" ¥³¥í¥ó¤Ç¶èÀڤäƥ֥饦¥¶¥³¥Þ¥ó¥É¤òʤ٤롣
.\" http://www.catb.org/~esr/BROWSER/ ¤ò¸«¤è¡£
.PP
.\"O Further names may be placed in the environment by the \fIexport\fP
.\"O command and "name=value" in
.\"O .BR sh (1),
.\"O or by the \fIsetenv\fP command if you use
.\"O .BR csh (1).
.\"O Arguments may also be placed in the
.\"O environment at the point of an
.\"O .BR exec (3).
.\"O A C program can manipulate its environment using the functions
.\"O .BR getenv (3),
.\"O .BR putenv (3),
.\"O .BR setenv (3),
.\"O and
.\"O .BR unsetenv (3).
´Ä¶­¤Ë̾Á°¤òÄɲ乤ë¾ì¹ç¤Ë¤Ï¡¢
.BR sh (1)
¤Ç¤Ï \fIexport\fP ¥³¥Þ¥ó¥É¤È "name=value" ¤ò»ÈÍѤ¹¤ë¡£
.BR csh (1)
¤Ç¤Ï \fIsetenv\fP ¥³¥Þ¥ó¥É¤ò»ÈÍѤ¹¤ë¡£
.BR exec (3)
¤Î°ú¿ô¤È¤·¤Æ¤â´Ä¶­¤òÀßÄꤹ¤ë¤³¤È¤¬¤Ç¤­¤ë¡£
C ¥×¥í¥°¥é¥à¤«¤é¤Ï¡¢
.BR getenv (3),
.BR putenv (3),
.BR setenv (3),
.BR unsetenv (3)
¤Ê¤É¤Î´Ø¿ô¤òÍѤ¤¤Æ´Ä¶­¤ò°·¤¦¤³¤È¤¬¤Ç¤­¤ë¡£

.\"O Note that the behavior of many programs and library routines is
.\"O influenced by the presence or value of certain environment variables.
.\"O A random collection:
¥×¥í¥°¥é¥à¤ä¥é¥¤¥Ö¥é¥ê¥ë¡¼¥Á¥ó¤Î¿¤¯¤Ï¡¢¤½¤ì¤¾¤ìŬÅö¤Ê´Ä¶­ÊÑ¿ô¤Î¸ºß
¤äÃͤˤè¤Ã¤Æ¡¢Æ°ºî¤Ë±Æ¶Á¤ò¼õ¤±¤ë¤³¤È¤¬¤¢¤ë¡£°Ê²¼¡¢Å¬µ¹µó¤²¤Æ¤ß¤è¤¦¡£
.LP
.\"O The variables
.\"O .BR LANG ", " LANGUAGE ", " NLSPATH ", " LOCPATH ", "
.\"O .BR LC_ALL ", " LC_MESSAGES ", "
.\"O etc. influence locale handling, cf.
.\"O .BR locale (5).
.BR LANG ", " LANGUAGE ", " NLSPATH ", " LOCPATH ", "
.BR LC_ALL ", " LC_MESSAGES ", "
¤Ê¤É¤ÎÊÑ¿ô¡£¥í¥±¡¼¥ë¤Î°·¤¤¤Ë±Æ¶Á¤¹¤ë¡£
.BR locale (5)
¤ò¸«¤è¡£
.LP
.\"O .B TMPDIR
.\"O influences the path prefix of names created by
.\"O .BR tmpnam (3)
.\"O and other routines, the temporary directory used by
.\"O .BR sort (1)
.\"O and other programs, etc.
.B TMPDIR
¤Ï
.BR tmpnam (3)
¤Ê¤É¤Î¥ë¡¼¥Á¥ó¤Ë¤è¤Ã¤ÆºîÀ®¤µ¤ì¤ë¥Õ¥¡¥¤¥ë̾¤ËÁ°ÃÖ¤µ¤ì¤ë¥Ñ¥¹¤Ë±Æ¶Á¤¹¤ë¡£¤Þ¤¿
.BR sort (1)
¤Î°ì»þ¥Ç¥£¥ì¥¯¥È¥ê¤ËÍѤ¤¤é¤ì¤¿¤ê¡¢Â¾¤Î¥×¥í¥°¥é¥à¤«¤é¤âÍøÍѤµ¤ì¤ë¡£
.LP
.\"O .BR LD_LIBRARY_PATH ", " LD_PRELOAD
.\"O and other LD_* variables influence
.\"O the behavior of the dynamic loader/linker.
.BR LD_LIBRARY_PATH ", " LD_PRELOAD
¤Ê¤É¤Î LD_* ÊÑ¿ô¤Ï¥À¥¤¥Ê¥ß¥Ã¥¯¥í¡¼¥À¡¦¥ê¥ó¥«¤ÎÆ°ºî¤Ë±Æ¶Á¤¹¤ë¡£
.LP
.\"O .B POSIXLY_CORRECT
.\"O makes certain programs and library routines follow
.\"O the prescriptions of POSIX.
.B POSIXLY_CORRECT
¤¬»ØÄꤵ¤ì¤ë¤È¡¢¤¢¤ë¼ï¤Î¥×¥í¥°¥é¥à¤ä¥é¥¤¥Ö¥é¥ê¥ë¡¼¥Á¥ó¤Ï
POSIX ¤Îµ¬Äê¤Ë½¾¤¦¤è¤¦¤Ë¤Ê¤ë¡£
.LP
.\"O The behavior of
.\"O .BR malloc (3)
.\"O is influenced by
.\"O .B MALLOC_*
.\"O variables.
.BR malloc (3)
¤ÎÆ°ºî¤Ï
.B MALLOC_*
ÊÑ¿ô¤Ë¤è¤Ã¤Æ±Æ¶Á¤µ¤ì¤ë¡£
.LP
.\"O The variable
.\"O .B HOSTALIASES
.\"O gives the name of a file containing aliases
.\"O to be used with
.\"O .BR gethostbyname (3).
.B HOSTALIAS
ÊÑ¿ô¤Ï¡¢
.BR gethostbyname (3)
¤¬ÍѤ¤¤ë¥¨¥¤¥ê¥¢¥¹¤¬½ñ¤«¤ì¤Æ¤¤¤ë¥Õ¥¡¥¤¥ë̾¤òÍ¿¤¨¤ë¡£
.LP
.\"O .BR TZ " and " TZDIR
.\"O give timezone information used by
.\"O .BR tzset (3)
.\"O and through that by functions like
.\"O .BR ctime (3),
.\"O .BR localtime (3),
.\"O .BR mktime (3),
.\"O .BR strftime (3).
.\"O See also
.\"O .BR tzselect (8).
.BR TZ " ¤È " TZDIR
¤Ï
.BR tzset (3)
¤ª¤è¤Ó¡¢¤³¤Î´Ø¿ô¤ò»È¤¦
.BR ctime (3),
.BR localtime (3),
.BR mktime (3),
.BR strftime (3)
¤È¤¤¤Ã¤¿´Ø¿ô¤ÇÍѤ¤¤é¤ì¤ë¥¿¥¤¥à¥¾¡¼¥ó¤Î¾ðÊó¤òÍ¿¤¨¤ë¡£
.BR tzselect (8)
¤â»²¾È¤Î¤³¤È¡£
.LP
.\"O .B TERMCAP
.\"O gives information on how to address a given terminal
.\"O (or gives the name of a file containing such information).
.B TERMCAP
¤Ï¡¢¸½ºß¤ÎüËö¾ðÊó¤Î¼èÆÀÀè
(¤¢¤ë¤¤¤Ï¤½¤Î¤è¤¦¤Ê¾ðÊ󤬽ñ¤«¤ì¤Æ¤¤¤ë¥Õ¥¡¥¤¥ë̾) ¤òÍ¿¤¨¤ë¡£
.LP
.\"O .BR COLUMNS " and " LINES
.\"O tell applications about the window size, possibly overriding the actual size.
.BR COLUMNS " ¤È " LINES
¥¢¥×¥ê¥±¡¼¥·¥ç¥ó¤Ë¥¦¥¤¥ó¥É¥¦¤Î¥µ¥¤¥º¤òÅÁ¤¨¤ë¡£
¼ÂºÝ¤Î¥µ¥¤¥º¤È¤Ï°ã¤¦ÃͤòÍ¿¤¨¤ë¤³¤È¤â¤Ç¤­¤ë¡£
.LP
.\"O .BR PRINTER " or " LPDEST
.BR PRINTER " ¤Þ¤¿¤Ï " LPDEST
.\"O may specify the desired printer to use.
.\"O See
.\"O .BR lpr (1).
ÍѤ¤¤¿¤¤¥×¥ê¥ó¥¿¤ò»ØÄꤹ¤ë¡£
.BR lpr (1)
¤ò»²¾È¤Î¤³¤È¡£
.LP
.\"O Etc.
¤Ê¤É¤Ê¤É...
.\"O .SH BUGS
.SH ¥Ð¥°
.\"O Clearly there is a security risk here.
.\"O Many a system command has been
.\"O tricked into mischief by a user who specified unusual values for
.\"O .BR IFS " or " LD_LIBRARY_PATH .
¤³¤ì¤é¤ÎÃæ¤Ë¤Ï¡¢ÌÀ¤é¤«¤Ë¥»¥­¥å¥ê¥Æ¥£¾å¤Î´í¸±¤¬Â¸ºß¤¹¤ë¡£
¥æ¡¼¥¶¡¼¤¬
.BR IFS " ¤ä " LD_LIBRARY_PATH
¤Ë°Û¾ï¤ÊÃͤòÍ¿¤¨¤¿¤³¤È¤Ë¤è¤Ã¤Æ¡¢
¤³¤ì¤Þ¤Ç¿¤¯¤Î¥·¥¹¥Æ¥à¥³¥Þ¥ó¥É¤¬¤À¤Þ¤µ¤ì¤Æ¡¢
¥·¥¹¥Æ¥à¤ò¤Ò¤É¤¤Ìܤˤ¢¤ï¤»¤Æ¤­¤¿¡£

.\"O There is also the risk of name space pollution.
.\"O Programs like
.\"O .I make
.\"O and
.\"O .I autoconf
.\"O allow overriding of default utility names from the
.\"O environment with similarly named variables in all caps.
.\"O Thus one uses
.\"O .B CC
.\"O to select the desired C compiler (and similarly
.\"O .BR MAKE ,
.\"O .BR AR ,
.\"O .BR AS ,
.\"O .BR FC ,
.\"O .BR LD ,
.\"O .BR LEX ,
.\"O .BR RM ,
.\"O .BR YACC ,
.\"O etc.).
̾Á°¶õ´Ö¤¬±øÀ÷¤µ¤ì¤ë´í¸±À­¤â¸ºß¤¹¤ë¡£
.I make
¤ä
.I autoconf
¤Î¤è¤¦¤Ê¥×¥í¥°¥é¥à¤Ç¤Ï¡¢¥Ç¥Õ¥©¥ë¥È¤Î¥æ¡¼¥Æ¥£¥ê¥Æ¥£¤ò
´Ä¶­¤Ë¤¢¤ë»÷¤¿¤è¤¦¤Ê̾Á°¤ÎÊÑ¿ô¤Ç¾å½ñ¤­¤¹¤ë¤³¤È¤¬¤Ç¤­¤ë
(Ä̾ï¤Ï¤¹¤Ù¤ÆÂçʸ»ú¤ÎÊÑ¿ô¤òÍѤ¤¤ë)¡£
¤¹¤Ê¤ï¤Á¡¢ÍøÍѤ·¤¿¤¤ C ¥³¥ó¥Ñ¥¤¥é¤Ï
.B CC
¤ÇÁªÂò¤Ç¤­¤ë¡£¤Þ¤¿Æ±ÍͤË
.BR MAKE ,
.BR AR ,
.BR AS ,
.BR FC ,
.BR LD ,
.BR LEX ,
.BR RM ,
.B YACC
¤Ê¤É¤âÍѤ¤¤ë¤³¤È¤¬¤Ç¤­¤ë¡£
.\"O However, in some traditional uses such an environment variable
.\"O gives options for the program instead of a pathname.
.\"O Thus, one has
.\"O .BR MORE ,
.\"O .BR LESS ,
.\"O and
.\"O .BR GZIP .
.\"O Such usage is considered mistaken, and to be avoided in new
.\"O programs.
.\"O The authors of
.\"O .I gzip
.\"O should consider renaming their option to
.\"O .BR GZIP_OPT .
¤È¤³¤í¤¬°ìÊý¤Ç¤Ï¡¢¤³¤Î¤è¤¦¤ÊÊÑ¿ô¤ò
(¥Ñ¥¹Ì¾¤Ç¤Ï¤Ê¤¯)
¥×¥í¥°¥é¥à¤ËÂФ¹¤ë¥ª¥×¥·¥ç¥ó¤È¤·¤Æ°·¤¦¤è¤¦¤Êήµ·¤â¸ºß¤·¤Æ¤­¤¿¡£
Î㤨¤Ð
.BR MORE ,
.BR LESS ,
.B GZIP
¤Ê¤É¤¬¤½¤¦¤Ç¤¢¤ë¡£
¤³¤Î¤è¤¦¤ÊÍøÍÑË¡¤Ï´Ö°ã¤Ã¤Æ¤¤¤ë¤È¹Í¤¨¤ë¤Ù¤­¤Ç¡¢
¿·¤·¤¤¥×¥í¥°¥é¥à¤Ç¤ÏÈò¤±¤ë¤Ù¤­¤Ç¤¢¤ë¡£
.I gzip
¤Îºî¼Ô¤¿¤Á¤Ï¡¢¥ª¥×¥·¥ç¥ó¤òÍ¿¤¨¤ë´Ä¶­ÊÑ¿ô¤ò
.B GZIP_OPT
¤Ë²þ̾¤¹¤ë¤³¤È¤ò¹Í¤¨¤ë¤Û¤¦¤¬¤è¤¤¡£
.\"O .SH "SEE ALSO"
.SH ´ØÏ¢¹àÌÜ
.BR bash (1),
.BR csh (1),
.BR login (1),
.BR sh (1),
.BR tcsh (1),
.BR execve (2),
.BR clearenv (3),
.BR exec (3),
.BR getenv (3),
.BR putenv (3),
.BR setenv (3),
.BR unsetenv (3),
.BR locale (5)