# mesg(1)

## NAME

         mesg - permit or deny messages

## SYNOPSIS

         mesg [ n ] [ y ]

## DESCRIPTION

         Mesg with argument n forbids messages via write and talk(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), talk(1).

## DIAGNOSTICS

         Exit status is 0 if messages are receivable, 1 if not, 2 on error.