Date: Sun, 11 Aug 2002 19:36:56 +1000 From: "Chris Knight" <chris@aims.com.au> To: <freebsd-stable@freebsd.org> Subject: variable scope issue in -stable? Message-ID: <014d01c2411a$a2bee5d0$020aa8c0@aims.private>
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Howdy,
I've got the following problem in FreeBSD-stable, and also 4.6, 4.5 and 4.2.
The following code is not behaving as expected:
-----
#!/bin/sh
match=0
anycmd | while read line
do
case "$line" in
"command")
match=1
echo "match=$match"
;;
*)
;;
esac
done
echo "match=$match"
-----
The output of the above results in:
match=1
match=0
I'd expect match to be a global definition, but match loses its value
outside of the while block.
It appears that read stuffs things up - if I change the while expression to
something other than read, then the variable scope behaves correctly.
Or am I missing something?
Regards,
Chris Knight
Systems Administrator
AIMS Independent Computer Professionals
Tel: +61 3 6334 6664 Fax: +61 3 6331 7032 Mob: +61 419 528 795
Web: http://www.aims.com.au
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