MESG(1) MESG(1) mesg - ( ) mesg [] [n|y] mesg . , talk(1) write(1) . , . , , , . The initial permissions for the terminal are set by login(1) according to TTYPERM and TTYGROUP from /etc/login.defs. The default is mode 0620 if a tty group is used, and 0600 without the group. The default tty group name is "tty". , mesg . mesg . 2.41, mesg ,," ,,". ,,tty" . , write(1) wall(1) ,,tty" . mesg 2 . mesg . --verbose ,,mesg" . 2.33. n . y . , mesg . -v, --verbose . -h, --help . -V, --version . mesg : 0 . 1 . >1 . /dev/[pt]ty*, /dev/pts/[0-9]* mesg (I) UNIX . 7 AT&T UNIX-. login(1), talk(1), write(1), wall(1), xterm(1) , ,,https://github.com/util-linux/util-linux/issues[issue tracker]". mesg ,,util-linux" . util-linux 2.42.3 2026-09-02 MESG(1)