# killall5 - send a signal to all processes - man(8) - [phpMan]

[_KILLALL5_(8)](https://www.chedong.com/phpMan.php/man/KILLALL5/8/markdown)                      Linux System Administrator's Manual                     [_KILLALL5_(8)](https://www.chedong.com/phpMan.php/man/KILLALL5/8/markdown)

## NAME
       killall5 - send a signal to all processes

## SYNOPSIS
       **killall5 -signalnumber **[**-o _**omitpid_[,_omitpid_...]]  [**-o _**omitpid_[,_omitpid_...]...]

## DESCRIPTION
       **killall5  **is  the  SystemV  **killall **command. It sends a signal to all processes except kernel
       threads and the processes in its own session, so it won't kill the shell that is running  the
       script  it  was  called  from.  Its  primary  (only)  use  is  in the **rc **scripts found in the
       _/etc/init.d_ directory.

## OPTIONS
### -o _
              Tells **killall5 **to omit processes with that process id.

## NOTES
       **killall5 **can also be invoked as [**pidof**(8)](https://www.chedong.com/phpMan.php/man/pidof/8/markdown), which is simply a (symbolic) link to  the  **killall5**
       program.

## EXIT STATUS
       The  program return zero if it killed processes.  It returns 2 if no process were killed, and
       1 if it was unable to find any processes (_/proc/_ is missing).

## SEE ALSO
       [**halt**(8)](https://www.chedong.com/phpMan.php/man/halt/8/markdown), [**reboot**(8)](https://www.chedong.com/phpMan.php/man/reboot/8/markdown), [**pidof**(8)](https://www.chedong.com/phpMan.php/man/pidof/8/markdown)

## AUTHOR
       [Miquel van Smoorenburg](mailto:<miquels@cistron.nl>)

sysvinit                                     04 Nov 2003                                 [_KILLALL5_(8)](https://www.chedong.com/phpMan.php/man/KILLALL5/8/markdown)