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. 

  —  Essential Utilities