mesg(1)                    DG/UX 4.30                     mesg(1)



     NAME
          mesg - permit or deny messages

     SYNOPSIS
          mesg [ n ] [ y ]

     DESCRIPTION
          mesg n    Prevents other users from sending you messages
                    with write(1).  (It takes away non-user write
                    permission on the user's terminal).

          mesg y    Resets the permission so that you can receive
                    messages.

          mesg      Reports the current state without changing it.


     EXAMPLES
          $ mesg
          is y

          In the above example, the user checked if messages could be
          received at the terminal.  The respone "is y" states that
          the user can receive messages sent with the "write" command.


          $ mesg n
          $ mesg
          is n

          In the above example, the user has turned off the ability to
          receive messages.

     FILES
          /dev/tty*

     SEE ALSO
          write(1).

     DIAGNOSTICS
          Exit status is 0 if messages are receivable, 1 if not, 2 on
          error.













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