Path: utzoo!utgpu!water!watmath!clyde!rutgers!sri-unix!teknowledge-vaxc!mkhaw
From: mkhaw@teknowledge-vaxc.ARPA (Mike Khaw)
Newsgroups: comp.unix.questions
Subject: Re: Using pipes within awk programs
Message-ID: <20466@teknowledge-vaxc.ARPA>
Date: 21 Jan 88 23:24:57 GMT
References: <3521@megaron.arizona.edu>
Organization: Teknowledge, Inc., Palo Alto CA
Lines: 22
Posted: Thu Jan 21 15:24:57 1988

>> >	who | awk '{ print $1 | "sort" }'

>> >	who | awk '{ print $1 }' | sort

>> FYI, the two *don't* give the same results under Ultrix T2.0-1I.

> Then Ultrix must be seriously broken, to not allow standard

I think Ultrix awk is older than 4.3bsd's "old" awk.  On Ultrix 1.2,
the first form of pipe prints nothing.  The second form prints a sorted
list of logged in users.  Ultrix 1.2's awk also has the bug where
things like

	echo foo bar | awk '{ tmp = $1; $1 = $2; $2 = tmp; print $1, $2 }'

don't work.  That's how old it is.

Mike Khaw
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