MESG(1)                              BSD                               MESG(1)



NAME
     mesg - permit or deny messages

SYNOPSIS
     mesg [ n ] [ y ]

DESCRIPTION
     mesg with argument n forbids messages via write and talk(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*
     /dev/display*

SEE ALSO
     write(1), talk(1)

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