Send a signal to a job.
Send the processes identified by PID or JOBSPEC the signal named by
SIGSPEC or SIGNUM. If neither SIGSPEC nor SIGNUM is present, then
SIGTERM is assumed.
Options:
-s sig
[tab]SIG is a signal name
-n sig
[tab]SIG is a signal number
-l
[tab]list the signal names; if arguments follow `-l' they are
[tab]assumed to be signal numbers for which names should be listed
Kill is a shell builtin for two reasons: it allows job IDs to be used
instead of process IDs, and allows processes to be killed if the limit
on processes that you can create is reached.
Exit Status:
Returns success unless an invalid option is given or an error occurs.
