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@(#)kill.1 8.2 (Berkeley) 4/28/95
.Dd April 28, 1995 .Dt KILL 1 .Os .Sh NAME .Nm kill .Nd terminate or signal a process .Sh SYNOPSIS .Nm .Op Fl s Ar signal_name .Ar pid ... .Nm .Fl l .Op Ar exit_status .Nm .Fl signal_name .Ar pid ... .Nm .Fl signal_number .Ar pid ... .Sh DESCRIPTION The .Nm utility sends a signal to the process(es) specified by the pid operand(s).
p Only the super-user may send signals to other users' processes.
p The options are as follows:
p l -tag -width Ds t Fl s Ar signal_name A symbolic signal name specifying the signal to be sent instead of the default .Dv TERM . t Fl l Op Ar exit_status Display the name of the signal corresponding to .Ar exit_status . .Ar exit_status may be the exit status of a command killed by a signal (see the special .Xr sh 1 parameter .Sq ? ) or a signal number.
p If no operand is given, display the names of all the signals. t Fl signal_name A symbolic signal name specifying the signal to be sent instead of the default .Dv TERM . t Fl signal_number A non-negative decimal integer, specifying the signal to be sent instead of the default .Dv TERM . .El
p The following pids have special meanings: l -tag -width Ds -compact t -1 If superuser, broadcast the signal to all processes; otherwise broadcast to all processes belonging to the user. t 0 Broadcast the signal to all processes in the current process group belonging to the user. .El
p Some of the more commonly used signals: l -tag -width Ds -compact t 1 HUP (hang up) t 2 INT (interrupt) t 3 QUIT (quit) t 6 ABRT (abort) t 9 KILL (non-catchable, non-ignorable kill) t 14 ALRM (alarm clock) t 15 TERM (software termination signal) .El
p .Nm 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 arguments. See .Xr csh 1 for details. .Sh SEE ALSO .Xr csh 1 , .Xr pgrep 1 , .Xr pkill 1 , .Xr ps 1 , .Xr kill 2 , .Xr sigaction 2 , .Xr signal 7 .Sh STANDARDS The .Nm function is expected to be .St -p1003.2 compatible. .Sh HISTORY A .Nm command appeared in .At v6 .