Shell problem

From: David Grothe <d...@gcom.com>
Subject: Shell problem
Date: 1998/07/23
Message-ID: <35B74A06.CF165EF9@gcom.com>#1/1
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I have run the following shell script on several different OS-s and
shells.

    var="initial"
    export var
    echo "final" >junk.$$
    while read line
    do
        echo $$ inside loop: before assignment: var=\"$var\"
line=\"$line\"
        var="$var $line"
        echo $$ inside loop: after assignment: var=\"$var\"
line=\"$line\"
    done <junk.$$

    echo $$ after loop: var=\"$var\"
    rm junk.$$

There are two types of output:

Type 1:

4147 inside loop: before assignment: var="initial" line="final"
4147 inside loop: after assignment: var="initial final" line="final"
4147 after loop: var="initial"

Type 2:

4159 inside loop: before assignment: var="initial" line="final"
4159 inside loop: after assignment: var="initial final" line="final"
4159 after loop: var="initial final"

The following chart summarizes the results of the testing:

Operating System        sh        ksh
UnixWare 7               1          2
OpenServer 5             1          2
SPARC Solaris            1          2
Linux                    2          2

To my mind, output type 2 is correct.  Any comments?  Any promises to
fix the behavior?

Thanks,
Dave

			  SCO's Case Against IBM

November 12, 2003 - Jed Boal from Eyewitness News KSL 5 TV provides an
overview on SCO's case against IBM. Darl McBride, SCO's president and CEO,
talks about the lawsuit's impact and attacks. Jason Holt, student and 
Linux user, talks about the benefits of code availability and the merits 
of the SCO vs IBM lawsuit. See SCO vs IBM.