machid(1)                                               machid(1)



NAME
     m68k, pdp11, u3b, u3b2, u3b5, u3b15,  vax  -  provide  truth
     values about processor type

SYNOPSIS
     m68k

     pdp11

     u3b

     u3b2

     u3b5

     u3b15

     vax

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

     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.

     u3b2 True if program currently runs on a 3B 2 computer.

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

     u3b15
          True if program currently runs on a 3B 15 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 (nonzero)
     value.  These commands are often used within make(1)
     makefiles and shell procedures to increase portability.

FILES
     /bin/m68k
          Executable file
     /bin/pdp11
          Executable file
     /bin/u3b



January 1992                                                    1

machid(1)                                               machid(1)



          Executable file
     /bin/u3b2
          Executable file
     /bin/u3b5
          Executable file
     /bin/u3b15
          Executable file
     /bin/vax
          Executable file

SEE ALSO
     csh(1), ksh(1), make(1), sh(1), test(1), true(1)











































2                                                    January 1992