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Date: Fri, 14 Oct 2005 14:48:19 -0700
From: Drew Tomlinson <drew@mykitchentable.net>
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Subject: Help Understanding While Loop
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OK, I've been working on an sh script and I'm almost there.  In the 
script, I created a 'while read' loop that is doing what I want.  Now I 
want to keep track of how many times the loop executes.  Thus I included 
this line between the 'while read' and 'done' statements:

count = $(( count + 1 ))

I've tested this by adding an 'echo $count' statement in the loop and it 
increments by one each time the loop runs.  However when I attempt to 
call $count in an 'echo' statement after the 'done', the variable is 
null.  Thus I assume that $count is only local to the loop and I have to 
export it to make it available outside the loop?  What must I do?

Thanks for your help,

Drew

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