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+MESG(1)                   Minix Programmer's Manual                    MESG(1)
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+NAME
+     mesg - permit or deny messages
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+SYNOPSIS
+     mesg [ n ] [ y ]
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+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.
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+FILES
+     /dev/tty*
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+SEE ALSO
+     write(1), talk(1).
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+DIAGNOSTICS
+     Exit status is 0 if messages are receivable, 1 if not, 2 on error.
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+                               April 29, 1985                                1
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