


      MACHID(1)                   (UNIX 5.0)                  MACHID(1)



      NAME
           pdp11, u3b, vax, ridge sps9- provide truth value about your
           processor type

      SYNTAX
           pdp11

           u3b

           vax

           ridge

           sps9

      DESCRIPTION
           The following commands will return a true value (exit code
           of 0) if you are on a processor that the command name
           indicates.

                pdp11   True if you are on a PDP-11/45 or PDP-11/70.

                u3b     True if you are on a 3B20S.

                vax     True if you are on a VAX-11/750 or VAX-11/780.

                ridge   True if you are on a Ridge 32.

                sps9    True if you are on a Bull-SPS9.

           The commands that do not apply will return a false (non-
           zero) value.  These commands are often used within make(1)
           makefiles and shell procedures to increase portability.

      SEE ALSO
           sh(1), test(1), true(1).



















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