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



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 termi-
     nal.  mesg with argument y reinstates permission.  All by
     itself, mesg reports the current state without changing it.

FILES
     /dev/tty*

SEE ALSO
     write(1), talk(1)

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


































                        Printed 11/19/92                   Page 1