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kill - terminate a process with extreme prejudice
kill [ -signo ] processid ...
Kill sends signal 15 (terminate) to the specified processes. If a signal number preceded
by `-' is given as first argument, that signal is sent instead of terminate (see sig-
nal(2)). This will kill processes that do not catch the signal; in particular `kill -9
...' is a sure kill.
By convention, if process number 0 is specified, all members in the process group (i.e.
processes resulting from the current login) are signaled.
The killed processes must belong to the current user unless he is the super-user. To shut
the system down and bring it up single user the super-user may use `kill -1 1'; see
The process number of an asynchronous process started with `&' is reported by the shell.
Process numbers can also be found by using ps(1).
ps(1), kill(2), signal(2)
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