11/3/71                                                  MESG (I)





NAME            mesg  --  permit or deny messages



SYNOPSIS        mesg [ n ][ y ]



DESCRIPTION     mesg n forbids messages via write by revoking

                non-user write permission on the user's type-

                writer.  mesg y reinstates permission.  mesg with

                no argument reverses the current permission.  In

                all cases the previous state is reported.



FILES           /dev/tty?



SEE ALSO        write



DIAGNOSTICS     "?" if the standard input file is not a type-

                writer



BUGS            --



OWNER           dmr, ken