exit - End the application
exit ?returnCode?
Terminate the process, returning returnCode to the
system as the exit status.
If returnCode isn't specified then it defaults
to 0.
exit, process
Copyright © 1993 The Regents of the University of California.
Copyright © 1994-1996 Sun Microsystems, Inc.
Copyright © 1995, 1996 Roger E. Critchlow Jr.