man/manx/kill.8

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NAME            kill -- terminate process with extreme prejudice
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SYNOPSIS        /usr/adm/kill\b\b\b\b\b\b\b\b\b\b\b\b\b_____________ processnumber
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DESCRIPTION     After ps\b\b__
(q.v.) has given you the unique ID of a process, you can terminate
it by this command.
A core image is produced in the process's working directory.

Only the super-user can exercise this privilege.
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FILES           --
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SEE ALSO        ps (VIII)
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DIAGNOSTICS     yes
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BUGS            If the process
has executed sys nice (II)
and there is another process which has not, but
which loops,
the first process cannot be done in properly,
since it has to be swapped in so as cooperate
in its own murder.

It would also be nice if ordinary people could
kill their own processes.