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[Paul Jarc]

cgd@broadcom.com wrote:
> anyway if you look at the example I pasted, your trick obviously
> doesn't work on linux with /bin/sh...

No, it works.  Your test script isn't quite right: shcat is reading
from stdin, ignoring its arguments.  If you use this version, I think
you'll find that it works everywhere:
#!/bin/sh
while read x; do
  echo "$x"
done < "$1"

Or simply:
#!/bin/sh
exec cat ${1+"$@"}


paul