MESG(1)
NAME
mesg − permit or deny messages to terminal
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
DIAGNOSTICS
Exit status is 0 if messages are receivable, 1 if not, 2 on error.
STANDARDS CONFORMANCE
mesg: SVID2, XPG2, XPG3
Hewlett-Packard Company — HP-UX Release 7.0: Sept 1989