SHUTDOWN(ADM)            XENIX System V             SHUTDOWN(ADM)



     Name
          shutdown - Terminates all processing.

     Syntax
          /etc/shutdown [ time ] [ su ]

     Description
          The primary function of shutdown is to terminate all
          currently running processes in an orderly and cautious
          manner.  shutdown goes through the following steps:

          1.   All users logged on the system are notified to log off
               the system by a broadcast message.

          2.   /etc/init is called to perform the the actual shutdown.

          the time argument is the number of minutes before a shutdown
          will occur.  The optional su argument lets the user go
          single-user, without completely shutting down the system.

          You must be super-user to execute the shutdown command.

     See Also
          sync(ADM), umount(ADM), wall(ADM), boot(HW)

     Diagnostics
          The most common error diagnostic that will occur is device
          busy.  This diagnostic appears when a particular file system
          could not be unmounted.  See umount(ADM).

     Notes
          Once shutdown has been invoked, it must be allowed to run to
          completion and must not be interrupted by pressing BREAK or
          DEL.

          shutdown does not work when executed from within a shell
          layer.

          shutdown locks the hard disk heads.
















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