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From: jas@ernie.Berkeley.EDU (Jim Shankland)
Newsgroups: comp.unix.wizards
Subject: Re: while true (was Re: Must UNIX be a memory hog?)
Keywords: while, /bin/true, /bin/false
Message-ID: <29237@ucbvax.BERKELEY.EDU>
Date: 19 May 89 19:32:46 GMT
References: <159@zebra.UUCP> <1608@auspex.auspex.com> <2@minya.UUCP> <1197@marvin.Solbourne.COM>
Sender: usenet@ucbvax.BERKELEY.EDU
Reply-To: jas@ernie.Berkeley.EDU.UUCP (Jim Shankland)
Organization: University of California, Berkeley
Lines: 17

In article <1197@marvin.Solbourne.COM> dce@Solbourne.com (David Elliott) writes:
>The simplest speedup is to use a builtin command that returns
>true; specifically ":".  In other words, the fastest "while true"
>loop is actually
>
>	while :
>	do
>		...
>	done

Right; that's how I code my "while true" loops.  But what I haven't figured
out is:  how do I optimize my "while false" loops?

Jim Shankland
jas@ernie.berkeley.edu

"Blame it on the lies that killed us, blame it on the truth that ran us down"