mesg(1)               UNIX System V(Essential Utilities)                mesg(1)


NAME
      mesg - permit or deny messages

SYNOPSIS
      mesg [ -n ] [ -y ]

DESCRIPTION
      mesg with argument -n forbids messages via write(1) by revoking non-user
      write permission on the user's terminal.  mesg with argument -y
      reinstates permission.  All by itself, mesg reports the current state
      without changing it.

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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