MESG(1) General Commands Manual 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 rein‐
states permission. All by itself, mesg reports the current state with‐
out changing it.
FILES
/dev/tty*
SEE ALSO
write(1)
DIAGNOSTICS
Exit status is 0 if messages are receivable, 1 if not, 2 on error.
MESG(1)