.\" Copyright 1993 David Metcalfe (david@prism.demon.co.uk)
.\"
.\" 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.\" manual page may be incorrect or out-of-date.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.  The author(s) may not
.\" have taken the same level of care in the production of this manual,
.\" which is licensed free of charge, as they might when working
.\" professionally.
.\"
.\" Formatted or processed versions of this manual, if unaccompanied by
.\" the source, must acknowledge the copyright and authors of this work.
.\"
.\" References consulted:
.\"     Linux libc source code
.\"     Lewine's _POSIX Programmer's Guide_ (O'Reilly & Associates, 1991)
.\"     386BSD man pages
.\"	Single UNIX Specification, Version 2
.\" Modified Thu Apr  8 15:00:12 1993, David Metcalfe
.\" Modified Sat Jul 24 18:44:45 1993, Rik Faith (faith@cs.unc.edu)
.\" Modified Fri Feb 14 21:47:50 1997 by Andries Brouwer (aeb@cwi.nl)
.\" Modified Mon Oct 11 11:11:11 1999 by Andries Brouwer (aeb@cwi.nl)
.\" Modified Wed Nov 10 00:02:26 1999 by Andries Brouwer (aeb@cwi.nl)
.\" Modified Sun May 20 22:17:20 2001 by Andries Brouwer (aeb@cwi.nl)
.\"
.\" Japanese Version Copyright (c) 1997 HIROFUMI Nishizuka
.\"	all rights reserved.
.\" Translated 1997-12-19, HIROFUMI Nishizuka <nishi@rpts.cl.nec.co.jp>
.\" Updated 2000-06-18, Kentaro Shirakata <argrath@ub32.org>
.\" Updated 2005-11-19, Akihiro MOTOKI <amotoki@dd.iij4u.or.jp>
.\"
.TH PUTENV 3  2007-07-26 "GNU" "Linux Programmer's Manual"
.SH ̾
putenv \- Ķѿѹޤɲ
.SH 
.nf
.B #include <stdlib.h>
.sp
.BI "int putenv(char *" string );
.\" Not: const char *
.fi
.sp
.in -4n
glibc εǽޥ׷
.RB ( feature_test_macros (7)
):
.in
.sp
.BR putenv ():
_SVID_SOURCE || _XOPEN_SOURCE
\"O .SH DESCRIPTION
.SH 
.BR putenv ()
ؿϡĶѿɲäޤͤѹԤ
 \fIstring\fP  \fIname\fP=\fIvalue\fP Ȥ롣
\fIname\fP Ķ¸ߤʤ \fIstring\fP Ķɲä롣
\fIname\fP Ķ¸ߤ \fIname\fP ͤ \fIvalue\fP ѹ롣
\fIstring\fP ؤƤʸϴĶΰȤʤΤǡ
ʸѹȴĶѹ롣
.SH ֤
.BR putenv ()
ؿϡ 0 
顼ȯ 0 ʳ֤
.SH 顼
.TP
.B ENOMEM
ĶƤΤ˽ʬʶʤ
.SH 
SVr4, POSIX.1-2001, 4.3BSD.
.SH 
.BR putenv ()
ϥꥨȥȤǤ뤳ȤƤʤ
libc4, libc5, glibc 2.0 ǤϥꥨȥȤǤϤʤ
glibc 2.1 ǤϥꥨȥȤǤ롣
.LP
libc4, libc5, glibc ˴ؤ:
⤷  \fIstring\fP  \fIname\fP ñȤǡ
\(aq=\(aq ʸޤǤʤ硢Ķѿ \fIname\fP ϴĶ롣
⤷
.BR putenv ()
 \fIenviron\fP ݤʤФʤʤ
 \fIenviron\fP 
.BR putenv ()
ˤäƳݤ줿ΤʤС
ϲ롣
ĶѿΤΤ˳Ƥ줿Ťΰ褬뤳ȤϤʤ
.LP
libc4  libc5  glibc 2.1.2 Ǥ SUSv2 ˽򤷤Ƥ롣
.BR putenv ()
Ϳ줿ݥ \fIstring\fP Ȥ롣
ʸϴĶΰȤʤꡢѹȴĶѤ롣
(äơ
.BR putenv ()
ưѿȤƸƤӽФ
\fIstring\fPĶΰΤޤޤǸƤӽФؿ return ȥ顼ˤʤ)
glibc 2.0-2.1.1 ǤϰۤʤꡢʸΥԡȤ롣
ϥ꡼Ǥʤ SUSv2 ˰ȿƤ롣
 glibc2.1.2 ǽ줿
.LP
4.4BSD СǤϡglibc 2.0 Ʊͤ˥ԡȤ
.LP
SUSv2 Ǥϥץȥפ \fIconst\fP Ƥꡢ
glibc 2.1.3 ⤽Τ褦ˤʤäƤ롣
.SH Ϣ
.BR clearenv (3),
.BR getenv (3),
.BR setenv (3),
.BR unsetenv (3),
.BR environ (7)