kill [ -s signal name | -n signal number | -sig ] job ...
kill -l [ sig ... ]
       Sends either SIGTERM or the specified signal to the  given  jobs
       or  processes.  Signals are given by number or by names, with or
       without the `SIG' prefix.  If  the  signal  being  sent  is  not
       `KILL'  or  `CONT', then the job will be sent a `CONT' signal if
       it is stopped.  The argument job can be the process ID of a  job
       not in the job list.  In the second form, kill -l, if sig is not
       specified the signal names are listed.  Otherwise, for each  sig
       that  is a name, the corresponding signal number is listed.  For
       each sig that is a signal number or a  number  representing  the
       exit  status  of  a process which was terminated or stopped by a
       signal the name of the signal is printed.
