MESG(1)MESG(1)NAMEmesg - permit or deny messages
SYNOPSISmesg [ 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*
/dev
SEE ALSOwrite(1)DIAGNOSTICS
Exit status is 0 if messages are receivable, 1 if not, 2 on error.
MESG(1)