📄 mesg.1
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.TH MESG 1 .SH NAMEmesg \- permit or deny messages.SH SYNOPSIS.B mesg[.B n] [.B y].SH DESCRIPTION.I Mesgwith argument.B nforbids messages via.IR write (1)by revoking non-userwrite permission on the user's terminal..I Mesgwith argument.B yreinstates permission.All by itself,.I mesgreports the current state without changing it..SH FILES/dev/tty*.br/dev.SH "SEE ALSO"write(1).SH DIAGNOSTICSExit status is 0 if messages are receivable,1 if not, 2 on error.
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