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1.1 ! root 1: .TH MESG 1 "18 July 1983" ! 2: .SH NAME ! 3: mesg \- permit or deny messages ! 4: .SH SYNOPSIS ! 5: .B mesg ! 6: [ ! 7: .B n ! 8: ] [ ! 9: .B y ! 10: ] ! 11: .SH DESCRIPTION ! 12: .I Mesg ! 13: with argument ! 14: .B n ! 15: forbids messages via ! 16: .I write ! 17: and ! 18: .IR talk (1) ! 19: by revoking non-user ! 20: write permission on the user's terminal. ! 21: .I Mesg ! 22: with argument ! 23: .B y ! 24: reinstates permission. ! 25: All by itself, ! 26: .I mesg ! 27: reports the current state without changing it. ! 28: .SH FILES ! 29: /dev/tty* ! 30: .SH "SEE ALSO" ! 31: write(1), talk(1) ! 32: .SH DIAGNOSTICS ! 33: Exit status is 0 if messages are receivable, ! 34: 1 if not, 2 on error.
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