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NAME | SYNOPSIS | DESCRIPTION | OPTIONS | NOTES | EXAMPLES | SEE ALSO | STANDARDS | AUTHOR | REPORTING BUGS | COLOPHON |
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KILL(1) User Commands KILL(1)
kill - send a signal to a process
kill [options] <pid> [...]
The default signal for kill is TERM. Use -l or -L to list
available signals. Particularly useful signals include HUP, INT,
KILL, STOP, CONT, and 0. Alternate signals may be specified in
three ways: -9, -SIGKILL or -KILL. Negative PID values may be
used to choose whole process groups; see the PGID column in ps
command output. A PID of -1 is special; it indicates all
processes except the kill process itself and init.
<pid> [...]
Send signal to every <pid> listed.
-<signal>
-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) manual page.
-q, --queue value
Use sigqueue(3) rather than kill(2) and the value argument
is used to specify an integer to be sent with the signal.
If the receiving process has installed a handler for this
signal using the SA_SIGINFO flag to sigaction(2), then it
can obtain this data via the si_value field of the
siginfo_t structure.
-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 processes.
kill(2), killall(1), nice(1), pkill(1), renice(1), signal(7),
sigqueue(3), skill(1)
This command meets appropriate standards. The -L flag is Linux-
specific.
Albert Cahalan ⟨albert@users.sf.net⟩ wrote 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 ⟨procps@freelists.org⟩
This page is part of the procps-ng (/proc filesystem utilities)
project. Information about the project can be found at
⟨https://gitlab.com/procps-ng/procps⟩. If you have a bug report
for this manual page, see
⟨https://gitlab.com/procps-ng/procps/blob/master/Documentation/bugs.md⟩.
This page was obtained from the project's upstream Git repository
⟨https://gitlab.com/procps-ng/procps.git⟩ on 2022-12-18. (At
that time, the date of the most recent commit that was found in
the repository was 2022-12-13.) If you discover any rendering
problems in this HTML version of the page, or you believe there
is a better or more up-to-date source for the page, or you have
corrections or improvements to the information in this COLOPHON
(which is not part of the original manual page), send a mail to
man-pages@man7.org
procps-ng 2021-05-18 KILL(1)
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