1.\" $NetBSD: kill.1,v 1.16 2002/03/04 13:02:32 ad Exp $ 2.\" 3.\" Copyright (c) 1980, 1990, 1993 4.\" The Regents of the University of California. All rights reserved. 5.\" 6.\" This code is derived from software contributed to Berkeley by 7.\" the Institute of Electrical and Electronics Engineers, Inc. 8.\" 9.\" Redistribution and use in source and binary forms, with or without 10.\" modification, are permitted provided that the following conditions 11.\" are met: 12.\" 1. Redistributions of source code must retain the above copyright 13.\" notice, this list of conditions and the following disclaimer. 14.\" 2. Redistributions in binary form must reproduce the above copyright 15.\" notice, this list of conditions and the following disclaimer in the 16.\" documentation and/or other materials provided with the distribution. 17.\" 3. All advertising materials mentioning features or use of this software 18.\" must display the following acknowledgement: 19.\" This product includes software developed by the University of 20.\" California, Berkeley and its contributors. 21.\" 4. Neither the name of the University nor the names of its contributors 22.\" may be used to endorse or promote products derived from this software 23.\" without specific prior written permission. 24.\" 25.\" THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 26.\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 27.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 28.\" ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 29.\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 30.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 31.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 32.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 33.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 34.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 35.\" SUCH DAMAGE. 36.\" 37.\" @(#)kill.1 8.2 (Berkeley) 4/28/95 38.\" 39.Dd April 28, 1995 40.Dt KILL 1 41.Os 42.Sh NAME 43.Nm kill 44.Nd terminate or signal a process 45.Sh SYNOPSIS 46.Nm 47.Op Fl s Ar signal_name 48.Ar pid 49\&... 50.Nm "" 51.Fl l 52.Op Ar signal_number 53.Nm "" 54.Fl signal_name 55.Ar pid 56\&... 57.Nm "" 58.Fl signal_number 59.Ar pid 60\&... 61.Sh DESCRIPTION 62The 63.Nm 64utility sends a signal to the process(es) specified 65by the pid operand(s). 66.Pp 67Only the super-user may send signals to other users' processes. 68.Pp 69The options are as follows: 70.Pp 71.Bl -tag -width Ds 72.It Fl s Ar signal_name 73A symbolic signal name specifying the signal to be sent instead of the 74default 75.Dv TERM . 76.It Fl l Op Ar signal_number 77If no operand is given, list the signal names; otherwise, write 78the signal name corresponding to 79.Ar signal_number 80provided. 81.It Fl signal_name 82A symbolic signal name specifying the signal to be sent instead of the 83default 84.Dv TERM . 85.It Fl signal_number 86A non-negative decimal integer, specifying the signal to be sent instead 87of the default 88.Dv TERM . 89.El 90.Pp 91The following pids have special meanings: 92.Bl -tag -width Ds -compact 93.It -1 94If superuser, broadcast the signal to all processes; otherwise broadcast 95to all processes belonging to the user. 96.It 0 97Broadcast the signal to all processes in the current process group 98belonging to the user. 99.El 100.Pp 101Some of the more commonly used signals: 102.Bl -tag -width Ds -compact 103.It 1 104HUP (hang up) 105.It 2 106INT (interrupt) 107.It 3 108QUIT (quit) 109.It 6 110ABRT (abort) 111.It 9 112KILL (non-catchable, non-ignorable kill) 113.It 14 114ALRM (alarm clock) 115.It 15 116TERM (software termination signal) 117.El 118.Pp 119.Nm 120is a built-in to 121.Xr csh 1 ; 122it allows job specifiers of the form ``%...'' as arguments 123so process id's are not as often used as 124.Nm 125arguments. 126See 127.Xr csh 1 128for details. 129.Sh SEE ALSO 130.Xr csh 1 , 131.Xr pgrep 1 , 132.Xr pkill 1 , 133.Xr ps 1 , 134.Xr kill 2 , 135.Xr sigaction 2 , 136.Xr signal 7 137.Sh STANDARDS 138The 139.Nm 140function is expected to be 141.St -p1003.2 142compatible. 143.Sh HISTORY 144A 145.Nm 146command appeared in 147.At v6 . 148