NAME

machid, sun, iAPX286, m68k, pdp11, sparc, u3b, u3b2, u3b5, u3b15, vax, i386 − return a true exit status if the processor is of the indicated type

SYNOPSIS

sun

iAPX286

m68k

pdp11

sparc

u3b

u3b2

u3b5

u3b15

vax

i386

DESCRIPTION

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

sun True if you are on a Sun system. 

iAPX286 True if you are on a computer using an iAPX286 processor. 

i386 True if you are on a computer using an iAPX386 processor. 

m68k True if you are on a computer, such as a Sun-3 or a Sun-3x, using an M68000-family processor. 

pdp11 True if you are on a PDP-11. 

sparc True if you are on a computer, such as a Sun-4, using a SPARC-family processor. 

u3b True if you are on a 3B20S computer. 

u3b2 True if you are on a 3B2 computer. 

u3b5 True if you are on a 3B5 computer. 

u3b15 True if you are on a 3B15 computer. 

vax True if you are on a VAX. 

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

arch(1), mach(1), make(1), sh(1), test(1V), true(1)

Sun Release 4.1  —  Last change: 18 February 1988