xref: /freebsd/bin/kill/kill.1 (revision 7f3dea244c40159a41ab22da77a434d7c5b5e85a)
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35.\"	@(#)kill.1	8.2 (Berkeley) 4/28/95
36.\" $FreeBSD$
37.\"
38.Dd April 28, 1995
39.Dt KILL 1
40.Os
41.Sh NAME
42.Nm kill
43.Nd terminate or signal a process
44.Sh SYNOPSIS
45.Nm kill
46.Op Fl s Ar signal_name
47.Ar pid
48\&...
49.Nm kill
50.Fl l
51.Op Ar exit_status
52.Nm kill
53.Fl signal_name
54.Ar pid
55\&...
56.Nm kill
57.Fl signal_number
58.Ar pid
59\&...
60.Sh DESCRIPTION
61The
62.Nm
63utility sends a signal to the processes specified by the pid operand(s).
64.Pp
65Only the super-user may send signals to other users' processes.
66.Pp
67The options are as follows:
68.Pp
69.Bl -tag -width Ds
70.It Fl s Ar signal_name
71A symbolic signal name specifying the signal to be sent instead of the
72default
73.Dv TERM .
74.It Fl l Op Ar exit_status
75If no operand is given, list the signal names; otherwise, write
76the signal name corresponding to
77.Ar exit_status .
78.It Fl signal_name
79A symbolic signal name specifying the signal to be sent instead of the
80default
81.Dv TERM .
82.It Fl signal_number
83A non-negative decimal integer, specifying the signal to be sent instead
84of the default
85.Dv TERM .
86.El
87.Pp
88The following pids have special meanings:
89.Bl -tag -width Ds -compact
90.It -1
91If superuser, broadcast the signal to all processes; otherwise broadcast
92to all processes belonging to the user.
93.El
94.Pp
95Some of the more commonly used signals:
96.Bl -tag -width Ds -compact
97.It 1
98HUP (hang up)
99.It 2
100INT (interrupt)
101.It 3
102QUIT (quit)
103.It 6
104ABRT (abort)
105.It 9
106KILL (non-catchable, non-ignorable kill)
107.It 14
108ALRM (alarm clock)
109.It 15
110TERM (software termination signal)
111.El
112.Pp
113.Nm Kill
114is a built-in to
115.Xr csh  1  ;
116it allows job specifiers of the form ``%...'' as arguments
117so process id's are not as often used as
118.Nm
119arguments.
120See
121.Xr csh 1
122for details.
123.Sh SEE ALSO
124.Xr csh 1 ,
125.Xr killall 1 ,
126.Xr ps 1 ,
127.Xr kill 2 ,
128.Xr sigaction 2
129.Sh STANDARDS
130The
131.Nm
132function is expected to be
133.St -p1003.2
134compatible.
135.Sh HISTORY
136A
137.Nm
138command appeared in
139.At v6 .
140.Sh BUGS
141A replacement for the command
142.Dq Li kill 0
143for
144.Xr csh  1
145users should be provided.
146