MESG(1) (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.
Page 1 May 1989