Path: utzoo!attcan!uunet!mcsun!ukc!pyrltd!root44!gwc
From: gwc@root.co.uk (Geoff Clare)
Newsgroups: comp.unix.questions
Subject: Unnecessarily long pipelines (was Re: How do you handle while(1) fork(); ?)
Message-ID: <2358@root44.co.uk>
Date: 18 Jul 90 10:59:12 GMT
References: <price.648165820@chakra>
Organization: UniSoft Ltd., London, England
Lines: 14

In <price.648165820@chakra> price@chakra.unl.edu (Chad Price) writes:

>z=`ps -aug | grep $2 | grep -v grep | grep -v csh | grep -v kill | awk '{ print $2 }'`

I usually just chuckle to myself when I see things like this, but I decided
this time it's worth a comment.

Why is it that people string together lots of "grep" commands in a
pipeline, when they could do the same job with a single "sed" or "awk"
command?  In this case it's even worse, because "awk" is already in
there as well!
-- 
Geoff Clare <gwc@root.co.uk>  (Dumb American mailers: ...!uunet!root.co.uk!gwc)
UniSoft Limited, Hayne Street, London EC1A 9HH, England.   Tel: +44-71-315-6600