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killall is a command line utility available on Unix-like systems. There are two very different implementations.
- The implementation supplied with genuine UNIX System V (including Solaris) and Linux sysvinit tools kills all processes that the user is able to kill, potentially shutting down the system if run by root.
- The implementation supplied with the FreeBSD (including Mac OS X) and Linux psmisc tools is similar to the
pkillandskillcommands, killing only the processes specified on the command line.
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Both commands operate by sending a signal, like the kill program.
Kill all processes named xmms:
killall xmms
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