Path: utzoo!utgpu!news-server.csri.toronto.edu!mailrus!uunet!silma!aab
From: aab@silma.com (Andy Burgess)
Newsgroups: comp.unix.questions
Subject: What's wrong with this Bourne shell script?
Message-ID: <1990Aug3.193231.3166@silma.com>
Date: 3 Aug 90 19:32:31 GMT
Reply-To: aab@silma.UUCP (Andy Burgess)
Organization: Silma, Inc. Cupertino CA
Lines: 25


On SunOS 4.03c this script:

----------------------- cut here --------------
:
total=0
ls -ld * | while read line
do
  set - `echo $line`
  total=`expr $total + $4`
  echo "Subtotal $total"
done
echo "Total $total"
----------------------- cut here --------------

The subtotal prints increasing numbers as you would expect.
At the end total prints as 0!
What gives?

While you're at it, is there a better way to get the total bytes
of the files in a directory?

Thanks

Andy Burgess