kill - send a signal to a process
[options] <pid> [...]
The default signal for kill is TERM. Use -l
available signals. Particularly useful signals include HUP, INT, KILL, STOP,
CONT, and 0. Alternate signals may be specified in three ways: -9
. Negative PID values may be used to choose
whole process groups; see the PGID column in ps command output. A PID of
is special; it indicates all processes except the kill process
itself and init.
- <pid> [...]
- Send signal to every <pid> listed.
- -s <signal> --signal <signal>
Specify the signal to be sent. The signal can be specified by using
name or number. The behavior of signals is explained in signal(7)
- -l, --list [signal]
- List signal names. This option has optional argument, which
will convert signal number to signal name, or other way round.
- -L, --table
- List signal names in a nice table.
Your shell (command line interpreter) may have a built-in kill command. You may
need to run the command described here as /bin/kill to solve the conflict.
- kill -9 -1
- Kill all processes you can kill.
- kill -l 11
- Translate number 11 into a signal name.
- kill -L
- List the available signal choices in a nice table.
- kill 123 543 2341 3453
- Send the default signal, SIGTERM, to all those
This command meets appropriate standards. The -L
flag is Linux-specific.
kill in 1999 to replace a bsdutils one that was not standards compliant. The
util-linux one might also work correctly.
Please send bug reports to