v7 man page for kill

KILL(1) 						      General Commands Manual							   KILL(1)

NAME
       kill - terminate a process with extreme prejudice

SYNOPSIS
       kill [ -signo ] processid ...

DESCRIPTION
       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 signal(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 init(8).

       The process number of an asynchronous process started with `&' is reported by the shell.  Process numbers can also be found by using ps(1).

SEE ALSO
       ps(1), kill(2), signal(2)

																	   KILL(1)