MESG(1-SysV)        RISC/os Reference Manual         MESG(1-SysV)



NAME
     mesg - permit or deny messages

SYNOPSIS
     mesg [ -n ] [ -y ]

DESCRIPTION
     mesg with argument n forbids messages via write(1) by revok-
     ing 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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