Path: utzoo!utgpu!news-server.csri.toronto.edu!mailrus!iuvax!cica!tut.cis.ohio-state.edu!pt.cs.cmu.edu!b.gp.cs.cmu.edu!Ralf.Brown@B.GP.CS.CMU.EDU
From: Ralf.Brown@B.GP.CS.CMU.EDU
Newsgroups: comp.sys.ibm.pc
Subject: Re: Re^2: dir | more
Message-ID: <2610c5cd@ralf>
Date: 28 Mar 90 13:10:21 GMT
Sender: ralf@b.gp.cs.cmu.edu
Organization: Carnegie Mellon University School of Computer Science
Lines: 16
In-Reply-To: <0023@starsend.UUCP>

In article <0023@starsend.UUCP>, floyd@starsend.UUCP (Floyd Miller) wrote:
}If the implementation of a pipe in DOS is to
}create a temporary file, why are two files created?

Programmer laziness.  You need two temporary files if you want to chain three
or more programs with pipes.  4DOS only creates the files as needed (if you
do DIR|MORE, you get one temporary file; DIR|SORT|MORE creates two, then
deletes the no-longer-needed first before running MORE).

--
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"How to Prove It" by Dana Angluin              Disclaimer? I claimed something?
16. proof by cosmology:
    The negation of the proposition is unimaginable or meaningless.  Popular
    for proofs of the existence of God.