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From: sml@bene.UUCP (Steven List)
Newsgroups: net.unix-wizards
Subject: Re: simultaneous file reading in shell
Message-ID: <154@bene.UUCP>
Date: Sat, 25-May-85 12:30:57 EDT
Article-I.D.: bene.154
Posted: Sat May 25 12:30:57 1985
Date-Received: Thu, 30-May-85 01:18:49 EDT
References: <155@cernvax.UUCP>
Organization: Benetics Corp, Mt.View, CA
Lines: 30

> 
> 
>   Three important though simple scripts, to read simultaneously as many as six
> different files within any shell script, one line after the other, are listed
> below with samples of their use. I developped these scripts from an idea that
> hit me when reading my "Bible", "The Unix system" from Bourne; at page 213,
> an example of a shell script reading in a file is discussed, and I began to
> think about some tricky use of file descriptors.
> 
> 	Andre DIDELOT			...!mcvax!cernvax!cui!andre
> 	University of Geneva		DIDELOT@CGEUGE51.BITNET

First - bravo, Andre!!!  Having recently been impressed with chapter 8
of the same book (particularly the Tennis Ladder System), I am trying to
become more intelligent in the use of "exec" (particularly for file
descriptor reassignment).

Also revelatory was the examples of use of the "eval" builtin.  I had
not been able to figure it out from sh(1).

If anyone else out there has some good tricks/techniques that you'd be
willing to share, please!

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