.\" Hey Emacs! This file is -*- nroff -*- source.
.\"
.\" Copyright (c) 1992 Drew Eckhardt (drew@cs.colorado.edu), March 28, 1992
.\"
.\" 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.\" manual page may be incorrect or out-of-date.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.
.\"
.\" Modified by Michael Haardt <michael@moria.de>
.\" Modified by Thomas Koenig <ig25@rz.uni-karlsruhe.de>
.\" Modified 1993-07-23 by Rik Faith <faith@cs.unc.edu>
.\" Modified 1993-07-25 by Rik Faith <faith@cs.unc.edu>
.\" Modified 1995-11-01 by Michael Haardt
.\"  <michael@cantor.informatik.rwth-aachen.de>
.\" Modified 1996-04-14 by Andries Brouwer <aeb@cwi.nl>
.\"  [added some polishing contributed by Mike Battersby <mib@deakin.edu.au>]
.\" Modified 1996-07-21 by Andries Brouwer <aeb@cwi.nl>
.\" Modified 1997-01-17 by Andries Brouwer <aeb@cwi.nl>
.\" Modified 2001-12-18 by Andries Brouwer <aeb@cwi.nl>
.\" Modified 2002-07-24 by Michael Kerrisk <mtk.manpages@gmail.com>
.\"	Added note on historical rules enforced when an unprivileged process
.\"	sends a signal.
.\" Modified 2004-06-16 by Michael Kerrisk <mtk.manpages@gmail.com>
.\"     Added note on CAP_KILL
.\" Modified 2004-06-24 by aeb
.\" Modified, 2004-11-30, after idea from emmanuel.colbus@ensimag.imag.fr
.\"
.\" Japanese Version Copyright (c) 1997 Kazuyuki Tanisako
.\"         all rights reserved.
.\" Translated 1997-05-17, Kazuyuki Tanisako <tanisako@osa.dec-j.co.jp>
.\" Modified 1997-05-27, Kazuyuki Tanisako <tanisako@osa.dec-j.co.jp>
.\" Modified 1998-02-05, Kazuyuki Tanisako <tanisako@osa.dec-j.co.jp>
.\" Updated 2001-12-27, Kentaro Shirakata <argrath@ub32.org>
.\" Updated 2002-01-03, Kentaro Shirakata <argrath@ub32.org>
.\" Updated 2002-09-27, Kentaro Shirakata <argrath@ub32.org>
.\" Updated 2005-02-27, Akihiro MOTOKI <amotoki@dd.iij4u.or.jp>
.\" Updated 2005-12-05, Akihiro MOTOKI, Catch up to LDP man-pages 2.16
.\"
.\"WORD:	signal			ʥ
.\"WORD:	process group		ץ롼
.\"WORD:	permission		
.\"WORD:	privileges		ø
.\"WORD:	set-user-id		åȥ桼ID
.\"WORD:	signal handler		ʥϥɥ顼
.\"
.TH KILL 2 2007-07-26 "Linux" "Linux Programmer's Manual"
.SH ̾
kill \- ץ˥ʥ
.SH 
.nf
.B #include <sys/types.h>
.br
.B #include <signal.h>
.sp
.BI "int kill(pid_t " pid ", int " sig );
.fi
.sp
.in -4n
glibc εǽޥ׷
.RB ( feature_test_macros (7)
):
.in
.sp
.BR kill ():
_POSIX_C_SOURCE || _XOPEN_SOURCE
.SH 
ƥॳ
.BR kill ()
ϡǤդΥץ롼פ⤷ϥץ˥ʥ
Τ˻Ȥ롣
.PP
\fIpid\fP ͤꤷ硢 \fIsig\fP ǻꤷʥ뤬
\fIpid\fP Υץ롣
.PP
\fIpid\fP  0 ꤷ硢
ƤӽФΥץΥץ롼פ°뤹٤ƤΥץ
\fIsig\fP ǻꤷʥ뤬롣
.PP
\fIpid\fP  \-1 ꤷ硢 \fIsig\fP ǻꤷʥ뤬
ƤӽФΥץʥĤƤΥץ
롣âץֹ 1 (\fIinit\fP) ؤϥʥʤ
ʲδϢʬ⻲ȤΤȡ
.PP
\fIpid\fP  \-1 꾮ͤꤷ硢 \fI\-pid\fP 
ץ롼פ°뤹٤ƤΥץ \fIsig\fP 
ꤷʥ뤬롣
.PP
\fIsig\fP  0 ꤷ硢ʥʤ
顼ΥåϹԤ롣

ץʥĤĤˤϡ
Υץø (Linux Ǥ
.B CAP_KILL
ѥӥƥ) ĥץǤ뤫ʥ¦Υץ
UID ¸UID ¦Υץμ set-UID 
¸ (saved) set-UID פƤʤФʤʤ
.B SIGCONT
ξϡʥץȼץ
Ʊå˽°ƤнʬǤ롣
.SH ֤
 (ʤȤĤΥʥ뤬줿)
0 ֤롣顼ξ \-1 ֤졢
.I errno
Ŭڤꤵ롣
.SH 顼
.TP
.B EINVAL
̵ʥʥꤷ
.TP
.B EPERM
ץץΤФƤ
ʥĤäƤʤ
.TP
.B ESRCH
ꤷץޤϥץ롼פ¸ߤʤä
ӥץ¸ߤץȤƤߤʤ롣
ӥץȤϤǤ˽ϽλƤ뤬ƥץˤ
.BR wait ()
ԤƤʤץΤȤǤ롣
.SH 
SVr4, 4.3BSD, POSIX.1-2001
.SH 
ץֹ 1 
.I init
ץ뤳ȤǤ륷ʥϡ
.I init
Ū˥ʥϥɥꤷʥǤ롣
ʤäƤΤϡäƥƥ󤵤ʤ褦ˤ뤿Ǥ롣
.LP
POSIX.1-2001 Ǥϡ \fIkill(\-1,sig)\fP 
ƤӽФΥץʥ뤳ȤץƤ
\fIsig\fP 뤳Ȥ׵ᤷƤ롣
âƥ줿ƥץ
ʥоݤ롣
Linux ǤϡץʬȤ˥ʥ褦ˤʤäƤ뤬
Linux  \fIkill(\-1,sig)\fP ϸƤӽФΥץˤϥʥʤ
.LP
POSIX.1-2001 Ǥϰʲưˤʤ뤳Ȥ׵ᤷƤ롣
ʬȤ˥ʥȡʥäåɤΥʥ֥å
Ƥ餺¾ΤɤΥåɤ⤽Υʥ֤ˤʤ
.BR sigwait (3)
ǤΥʥԤäƤ⤤ʤ硢
.BR kill ()
˾ʤȤĤΥ֥åƤʤ
ʥ뤬ʥäåɤʤФʤʤ
.SS "Linux Ǥ"
Linux ǤϡøΤʤץ¾Υץ˥ʥ뤿
ɬפʸ¤ˤĤƤΥ롼뤬ͥСˤäƤ롣
.\" 0.* ͥäϳ䰦¿ѹ- MTK, 24 Jul 02
ͥ 1.0  1.2.2 Ǥϡ¦μ¸桼ID ¦
¸桼 IDȰפХʥǤ
ͥ 1.2.3  1.3.77Ǥϡ¦μ¸桼ID ¦
¥桼ID ¸桼ID Τ줫ȰפХʥǤ
ߤΥ롼ϡPOSIX.1-2001 ˽򤷤Ƥꡢͥ 1.3.78 ʹߤ
ŬѤƤ롣
.SH Х
С 2.6.7  2.6 ϤΥͥˤϡ
ץ롼פ˥ʥäȤˡ
ƤӽФΥץץ롼פ (СǤϤʤ) ΥС
ФƤΤߥʥĤäƤˡ
.BR kill ()
顼
.B EPERM
ǼԤȤХ롣
Υ顼֤ˤ⤫餺ΥʥϸƤӽФ
ʥĤƤΥץ롣
.SH Ϣ
.BR _exit (2),
.BR killpg (2),
.BR signal (2),
.BR sigqueue (2),
.BR tkill (2),
.BR exit (3),
.BR credentials (7),
.BR capabilities (7),
.BR signal (7)