machid(1)                                               machid(1)



     NAME
          m68k, pdp11, u3b, u3b5, vax - provide truth value about
          processor type

     SYNOPSIS
          m68k

          pdp11

          u3b

          u3b5

          vax

     DESCRIPTION
          The following commands (corresponding, respectively, to
          programs) will return a true value (exit code of 0) if
          program currently runs on a processor that the command name
          indicates.

               m68k    True if program currently runs on a 680x0.

               pdp11   True if program currently runs on a PDP-11/45
                       or PDP-11/70.

               u3b     True if program currently runs on a 3B 20S.

               u3b5    True if program currently runs on a 3B 5
                       computer.

               vax     True if program currently runs on a VAX-11/750
                       or VAX-11/780.

          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.

     FILES
          /bin/m68k
          /bin/pdp11
          /bin/u3b
          /bin/u3b5
          /bin/vax

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








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