2.11BSD#431 - /usr/man/cat1/mesg.0

MESG(1)             UNIX Programmer's Manual		  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 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 11/26/99	 April 29, 1985                         1