MESG(I) 3/15/72 MESG(I)





MESG(I)                      3/15/72                      MESG(I)







NAME

     mesg  -  permit or deny messages



SYNOPSIS

     mesg [ n ] [ y ]



DESCRIPTION

     Mesg with argument n forbids messages via write by  revoking

     non-user  write  permission  on the user's typewriter.  Mesg

     with argument y reinstates permission.  All by itself,  mesg

     reverses  the current permission.  In all cases the previous

     state is reported.



FILES

     /dev/tty?



SEE ALSO

     write(I)



DIAGNOSTICS

     `?' if the standard input file is not a typewriter



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