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Power 6/32 Unix version 1.2b

.TH MESG 1 "18 July 1983"
.SH NAME
mesg \- permit or deny messages
.SH SYNOPSIS
.B mesg
[
.B n
] [
.B y
]
.SH DESCRIPTION
.I Mesg
with argument
.B n
forbids messages via
.I  write
and
.IR talk (1)
by revoking non-user
write permission on the user's terminal.
.I Mesg
with argument
.B y
reinstates permission.
All by itself,
.I mesg
reports the current state without changing it.
.SH FILES
/dev/tty*
.SH "SEE ALSO"
write(1), talk(1)
.SH DIAGNOSTICS
Exit status is 0 if messages are receivable,
1 if not, 2 on error.

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