[unix-history] / bin / kill / kill.1

.\" Copyright (c) 1980, 1990 The Regents of the University of California.
.\" All rights reserved.
.\"
.\" This code is derived from software contributed to Berkeley by
.\" the Institute of Electrical and Electronics Engineers, Inc.
.\"
.\" Redistribution and use in source and binary forms, with or without
.\" modification, are permitted provided that the following conditions
.\" are met:
.\" 1. Redistributions of source code must retain the above copyright
.\"    notice, this list of conditions and the following disclaimer.
.\" 2. Redistributions in binary form must reproduce the above copyright
.\"    notice, this list of conditions and the following disclaimer in the
.\"    documentation and/or other materials provided with the distribution.
.\" 3. All advertising materials mentioning features or use of this software
.\"    must display the following acknowledgement:
.\"	This product includes software developed by the University of
.\"	California, Berkeley and its contributors.
.\" 4. Neither the name of the University nor the names of its contributors
.\"    may be used to endorse or promote products derived from this software
.\"    without specific prior written permission.
.\"
.\" THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
.\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
.\" ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
.\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
.\" SUCH DAMAGE.
.\"
.\"	@(#)kill.1	6.8 (Berkeley) 7/27/91
.\"
.Dd July 27, 1991
.Dt KILL 1
.Os
.Sh NAME
.Nm kill
.Nd terminate or signal a process
.Sh SYNOPSIS
.Nm kill
.Op Fl s Ar signal_name 
.Ar pid
\&...
.Nm kill
.Fl l
.Op Ar exit_status
.Nm kill
.Op Fl signal_name
.Ar pid
\&...
.Nm kill
.Op Fl signal_number
.Ar pid
\&...
.Sh DESCRIPTION
The kill utility sends the
.Dv TERM
signal to the processes specified
by the pid operand(s).
.Pp
Only the super-user may send signals to other users' processes.
.Pp
The options are as follows:
.Pp
.Bl -tag -width Ds
.It Fl l Op Ar exit_status
If no operand is given, list the signal names; otherwise, write 
the signal name corresponding to
.Ar exit_status .
.It Fl s Ar signal_name
A symbolic signal name specifying the signal to be sent instead of the
default
.Dv TERM .
.It Fl signal_name
A symbolic signal name specifying the signal to be sent instead of the
default
.Dv TERM .
.It Fl signal_number
A non-negative decimal integer, specifying the signal to be sent instead
of the default
.Dv TERM .
.El
.Pp
Some of the more commonly used signals:
.Bd -ragged -offset indent -compact
.Bl -column XXX TERM
.It 1	HUP	(hang up)
.It 2	INT	(interupt)
.It 3	QUIT	(quit)
.It 6	ABRT	(abort)
.It 9	KILL	(non-catchable, non-ignorable kill)
.It 14	ALRM	(alarm clock)
.It 15	TERM	(software termination signal)
.El
.Ed
.Pp
.Nm Kill
is a built-in to
.Xr csh  1  ;
it allows job specifiers of the form ``%...'' as arguments
so process id's are not as often used as
.Nm kill
arguments.
See
.Xr csh  1
for details.
.Sh SEE ALSO
.Xr csh 1 ,
.Xr ps 1 ,
.Xr kill 2 ,
.Xr sigvec 2
.Sh STANDARDS
The 
.Nm kill
function is expected to be 
.St -p1003.2
compatible.
.Sh HISTORY
A
.Nm kill
command appeared in
.At v6 .
.Sh BUGS
A replacement for the command
.Dq Li kill 0
for
.Xr csh  1
users should be provided.
Commit	Line	Data
15637ed4 RG	1	.\" Copyright (c) 1980, 1990 The Regents of the University of California.
	2	.\" All rights reserved.
	3	.\"
	4	.\" This code is derived from software contributed to Berkeley by
	5	.\" the Institute of Electrical and Electronics Engineers, Inc.
	6	.\"
	7	.\" Redistribution and use in source and binary forms, with or without
	8	.\" modification, are permitted provided that the following conditions
	9	.\" are met:
	10	.\" 1. Redistributions of source code must retain the above copyright
	11	.\" notice, this list of conditions and the following disclaimer.
	12	.\" 2. Redistributions in binary form must reproduce the above copyright
	13	.\" notice, this list of conditions and the following disclaimer in the
	14	.\" documentation and/or other materials provided with the distribution.
	15	.\" 3. All advertising materials mentioning features or use of this software
	16	.\" must display the following acknowledgement:
	17	.\" This product includes software developed by the University of
	18	.\" California, Berkeley and its contributors.
	19	.\" 4. Neither the name of the University nor the names of its contributors
	20	.\" may be used to endorse or promote products derived from this software
	21	.\" without specific prior written permission.
	22	.\"
	23	.\" THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
	24	.\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
	25	.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
	26	.\" ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
	27	.\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
	28	.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
	29	.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
	30	.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
	31	.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
	32	.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
	33	.\" SUCH DAMAGE.
	34	.\"
	35	.\" @(#)kill.1 6.8 (Berkeley) 7/27/91
	36	.\"
	37	.Dd July 27, 1991
	38	.Dt KILL 1
	39	.Os
	40	.Sh NAME
	41	.Nm kill
	42	.Nd terminate or signal a process
	43	.Sh SYNOPSIS
	44	.Nm kill
78ed81a3	45	.Op Fl s Ar signal_name
	46	.Ar pid
	47	\&...
	48	.Nm kill
	49	.Fl l
	50	.Op Ar exit_status
	51	.Nm kill
15637ed4 RG	52	.Op Fl signal_name
	53	.Ar pid
	54	\&...
	55	.Nm kill
	56	.Op Fl signal_number
	57	.Ar pid
	58	\&...
15637ed4 RG	59	.Sh DESCRIPTION
	60	The kill utility sends the
	61	.Dv TERM
	62	signal to the processes specified
	63	by the pid operand(s).
	64	.Pp
	65	Only the super-user may send signals to other users' processes.
	66	.Pp
	67	The options are as follows:
	68	.Pp
	69	.Bl -tag -width Ds
78ed81a3	70	.It Fl l Op Ar exit_status
	71	If no operand is given, list the signal names; otherwise, write
	72	the signal name corresponding to
	73	.Ar exit_status .
	74	.It Fl s Ar signal_name
	75	A symbolic signal name specifying the signal to be sent instead of the
	76	default
	77	.Dv TERM .
15637ed4 RG	78	.It Fl signal_name
	79	A symbolic signal name specifying the signal to be sent instead of the
	80	default
	81	.Dv TERM .
15637ed4 RG	82	.It Fl signal_number
	83	A non-negative decimal integer, specifying the signal to be sent instead
	84	of the default
	85	.Dv TERM .
	86	.El
	87	.Pp
	88	Some of the more commonly used signals:
	89	.Bd -ragged -offset indent -compact
	90	.Bl -column XXX TERM
78ed81a3	91	.It 1 HUP (hang up)
15637ed4 RG	92	.It 2 INT (interupt)
	93	.It 3 QUIT (quit)
	94	.It 6 ABRT (abort)
	95	.It 9 KILL (non-catchable, non-ignorable kill)
	96	.It 14 ALRM (alarm clock)
	97	.It 15 TERM (software termination signal)
	98	.El
	99	.Ed
	100	.Pp
	101	.Nm Kill
	102	is a built-in to
	103	.Xr csh 1 ;
	104	it allows job specifiers of the form ``%...'' as arguments
	105	so process id's are not as often used as
	106	.Nm kill
	107	arguments.
	108	See
	109	.Xr csh 1
	110	for details.
	111	.Sh SEE ALSO
	112	.Xr csh 1 ,
	113	.Xr ps 1 ,
	114	.Xr kill 2 ,
	115	.Xr sigvec 2
78ed81a3	116	.Sh STANDARDS
	117	The
	118	.Nm kill
	119	function is expected to be
	120	.St -p1003.2
	121	compatible.
15637ed4 RG	122	.Sh HISTORY
	123	A
	124	.Nm kill
	125	command appeared in
	126	.At v6 .
	127	.Sh BUGS
	128	A replacement for the command
	129	.Dq Li kill 0
	130	for
	131	.Xr csh 1
	132	users should be provided.