Help in Understanding awk if ( F ) syntax

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i860

machid(1)							   User Commands							 machid(1)

NAME

       machid, sun, iAPX286, i286, i386, i486, i860, pdp11, sparc, u3b, u3b2, u3b5, u3b15, vax, u370 - get processor type truth value

SYNOPSIS

       sun

       iAPX286

       i386

       pdp11

       sparc

       u3b

       u3b2

       u3b5

       u3b15

       vax

       u370

DESCRIPTION

       The following commands will return a true value (exit code of 0) if you are using an instruction set 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.

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

       sparc	  True if you are on a computer using a SPARC-family processor.

       u3b	  True if you are on a 3B20 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-11/750tm or VAX-11/780tm.

       u370	  True if you are on an IBM(R) System/370tm computer.

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

ATTRIBUTES

       See attributes(5) for descriptions of the following attributes:

       +-----------------------------+-----------------------------+
       |      ATTRIBUTE TYPE	     |	    ATTRIBUTE VALUE	   |
       +-----------------------------+-----------------------------+
       |Availability		     |SUNWcsu			   |
       +-----------------------------+-----------------------------+

SEE ALSO

       make(1S), sh(1), test(1), true(1), uname(1), attributes(5)

NOTES

       The machid family of commands is obsolete. Use uname -p and uname -m instead.

SunOS 5.11							    5 Jul 1990								 machid(1)

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