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KILL (1) | General commands | Unix Manual Pages | :man▋
NAME
kill - terminate or signal a process
CONTENTS
Synopsis
Description
Exit Status
Examples
See Also
Standards
History
Bugs
SYNOPSIS
kill [-s signal_name] pid ... kill -l [exit_status] kill signal_name pid ... kill signal_number pid ...
DESCRIPTION
The kill utility sends a signal to the processes specified by the pid operand(s). Only the super-user may send signals to other users’ processes. The options are as follows: | -s signal_name | | | A symbolic signal name specifying the signal to be sent instead of the default TERM. | | -l [exit_status] | | | If no operand is given, list the signal names; otherwise, write the signal name corresponding to exit_status. | | signal_name | | | A symbolic signal name specifying the signal to be sent instead of the default TERM. | | signal_number | | | A non-negative decimal integer, specifying the signal to be sent instead of the default TERM. | |
The following pids have special meanings: | -1 | If superuser, broadcast the signal to all processes; otherwise broadcast to all processes belonging to the user. | |
Some of the more commonly used signals: | 1 | HUP (hang up) | | 2 | INT (interrupt) | | 3 | QUIT (quit) | | 6 | ABRT (abort) | | 9 | KILL (non-catchable, non-ignorable kill) | | 14 | ALRM (alarm clock) | | 15 | TERM (software termination signal) | |
Some shells may provide a builtin kill command which is similar or identical to this utility. Consult the builtin(1) manual page.
EXIT STATUS
.Ex -std
EXAMPLES
Terminate the processes with pids 142 and 157: "kill 142 157" Send the hangup signal (SIGHUP) to the process with pid 507: "kill -s HUP 507" Terminate the process group with pgid 117: "kill -- -117"
SEE ALSO
builtin(1), csh(1), killall(1), ps(1), kill(2), sigaction(2)
STANDARDS
HISTORY
BUGS
csh(1)
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