bsd man page for exit

EXIT(3F)																  EXIT(3F)

NAME
       exit - terminate process with status

SYNOPSIS
       subroutine exit (status)
       integer status

DESCRIPTION
       Exit flushes and closes all the process's files, and notifies the parent process if it is executing a wait.  The low-order 8 bits of status
       are available to the parent process.  (Therefore status should be in the range 0 - 255)

       This call will never return.

       The C function exit may cause cleanup actions before the final `sys exit'.

FILES
       /usr/lib/libF77.a

SEE ALSO
       exit(2), fork(2), fork(3F), wait(2), wait(3F)

4.2 Berkeley Distribution					   May 15, 1985 							  EXIT(3F)