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freebsd/bin/kill/kill.1

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/*- or .\"- or #- to begin license clauses.
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.\"-
BSD 4.4 Lite bin Sources
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.\" Copyright (c) 1980, 1990, 1993
.\" 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.
.\" 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.
.\"
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.\" @(#)kill.1 8.2 (Berkeley) 4/28/95
$Id$ -> $FreeBSD$
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.\" $FreeBSD$
BSD 4.4 Lite bin Sources
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.\"
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.Dd April 28, 1995
BSD 4.4 Lite bin Sources
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.Dt KILL 1
.Os
.Sh NAME
.Nm kill
.Nd terminate or signal a process
.Sh SYNOPSIS
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.Nm
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.Op Fl s Ar signal_name
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.Ar pid ...
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.Nm
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.Fl l
.Op Ar exit_status
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.Nm
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.Fl Ar signal_name
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.Ar pid ...
mdoc(7) police: use the new features of the Nm macro.
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.Nm
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.Fl Ar signal_number
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.Ar pid ...
BSD 4.4 Lite bin Sources
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.Sh DESCRIPTION
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The
.Nm
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utility sends a signal to the processes specified by the
.Ar pid
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operands.
BSD 4.4 Lite bin Sources
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.Pp
Only the super-user may send signals to other users' processes.
.Pp
The options are as follows:
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.Bl -tag -width indent
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.It Fl s Ar signal_name
A symbolic signal name specifying the signal to be sent instead of the
default
.Dv TERM .
.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 .
Markup nits: use the Ar macro when describing the -signal_name and -signal_number options, and for referring to the "pid" argument.
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.It Fl Ar signal_name
BSD 4.4 Lite bin Sources
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A symbolic signal name specifying the signal to be sent instead of the
default
.Dv TERM .
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.It Fl Ar signal_number
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A non-negative decimal integer, specifying the signal to be sent instead
of the default
.Dv TERM .
.El
.Pp
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The following PIDs have special meanings:
.Bl -tag -width indent
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.It -1
If superuser, broadcast the signal to all processes; otherwise broadcast
to all processes belonging to the user.
.El
.Pp
BSD 4.4 Lite bin Sources
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Some of the more commonly used signals:
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.Pp
.Bl -tag -width indent -compact
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.It 1
HUP (hang up)
.It 2
INT (interrupt)
.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)
BSD 4.4 Lite bin Sources
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.El
.Pp
Improve shell documentation: * Consistently misspell built-in as builtin. * Add a builtin(1) manpage and create builtin(1) MLINKS for all shell builtin commands for which no standalone utility exists. These MLINKS replace those that were created for csh(1). * Add appropriate xrefs for builtin(1) to the csh(1) and sh(1) manpages, as well as to the manpages of standalone utilities which are supported as shell builtin commands in at least one of the shells. In such manpages, explain that similar functionality may be provided as a shell builtin command. * Improve sh(1)'s description of the cd builtin command. Csh(1) already describes it adequately. Replace the cd(1) manpage with a builtin(1) MLINKS link. * Clean up some mdoc problems: use Xr instead of literal "foo(n)"; use Ic instead of Xr for shell builtin commands. * Undo English contractions. Reviewed by: mpp, rgrimes
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Some shells may provide a builtin
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.Nm
Correct some hard sentence breaks. Only those surrounding the previous commit and those which cause ugly nroff output have been fixed, since the purpose of the style guideline which they contravene is to reduce the sizes of deltas. Reported by: bde
1999-09-14 11:46:04 +00:00
command which is similar or identical to this utility.
Consult the
Improve shell documentation: * Consistently misspell built-in as builtin. * Add a builtin(1) manpage and create builtin(1) MLINKS for all shell builtin commands for which no standalone utility exists. These MLINKS replace those that were created for csh(1). * Add appropriate xrefs for builtin(1) to the csh(1) and sh(1) manpages, as well as to the manpages of standalone utilities which are supported as shell builtin commands in at least one of the shells. In such manpages, explain that similar functionality may be provided as a shell builtin command. * Improve sh(1)'s description of the cd builtin command. Csh(1) already describes it adequately. Replace the cd(1) manpage with a builtin(1) MLINKS link. * Clean up some mdoc problems: use Xr instead of literal "foo(n)"; use Ic instead of Xr for shell builtin commands. * Undo English contractions. Reviewed by: mpp, rgrimes
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.Xr builtin 1
manual page.
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.Sh EXIT STATUS
.Ex -std
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.Sh EXAMPLES
Terminate
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the processes with PIDs 142 and 157:
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.Pp
.Dl "kill 142 157"
.Pp
Send the hangup signal
.Pq Dv SIGHUP
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to the process with PID 507:
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.Pp
.Dl "kill -s HUP 507"
.Pp
Fix markup.
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Terminate the process group with PGID 117:
Add examples and diagnostics sections
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.Pp
.Dl "kill -- -117"
BSD 4.4 Lite bin Sources
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.Sh SEE ALSO
Improve shell documentation: * Consistently misspell built-in as builtin. * Add a builtin(1) manpage and create builtin(1) MLINKS for all shell builtin commands for which no standalone utility exists. These MLINKS replace those that were created for csh(1). * Add appropriate xrefs for builtin(1) to the csh(1) and sh(1) manpages, as well as to the manpages of standalone utilities which are supported as shell builtin commands in at least one of the shells. In such manpages, explain that similar functionality may be provided as a shell builtin command. * Improve sh(1)'s description of the cd builtin command. Csh(1) already describes it adequately. Replace the cd(1) manpage with a builtin(1) MLINKS link. * Clean up some mdoc problems: use Xr instead of literal "foo(n)"; use Ic instead of Xr for shell builtin commands. * Undo English contractions. Reviewed by: mpp, rgrimes
1999-09-08 15:40:46 +00:00
.Xr builtin 1 ,
BSD 4.4 Lite bin Sources
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.Xr csh 1 ,
add a reference to killall(1)
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.Xr killall 1 ,
BSD 4.4 Lite bin Sources
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.Xr ps 1 ,
sh: Add kill builtin. This allows specifying a %job (which is equivalent to the corresponding process group). Additionally, it improves reliability of kill from sh in high-load situations and ensures "kill" finds the correct utility regardless of PATH, as required by POSIX (unless the undocumented %builtin mechanism is used). Side effect: fatal errors (any error other than kill(2) failure) now return exit status 2 instead of 1. (This is consistent with other sh builtins, but not in NetBSD.) Code size increases about 1K on i386. Obtained from: NetBSD
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.Xr sh 1 ,
BSD 4.4 Lite bin Sources
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.Xr kill 2 ,
kill.1: Remove reference to obsolete sigvec(2) man page. Removed self reference in sigaction(2) man page. Submitted by: Josh Gilliam <josh@quick.net> PR: 6617
1998-05-18 03:33:11 +00:00
.Xr sigaction 2
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.Sh STANDARDS
The
.Nm
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utility is expected to be
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.St -p1003.2
compatible.
BSD 4.4 Lite bin Sources
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.Sh HISTORY
A
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.Nm
BSD 4.4 Lite bin Sources
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command appeared in
Correct history (again): V3 had a kill command, only it was in section 8, not 1.
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.At v3 .
BSD 4.4 Lite bin Sources
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.Sh BUGS
A replacement for the command
.Dq Li kill 0
for
Deal with double whitespace.
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.Xr csh 1
BSD 4.4 Lite bin Sources
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users should be provided.
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