Is the below expected behavior? or bug? Values assigned to variables
within the loop, are not visible outside the loop. Using something
like 'while true' works as I would expect.
#!/bin/bash
## script: testing
## test variable visibility
num=0
echo 1 > tmp
cat tmp |while read line ; do
num=1
echo $num
done
echo $num
#--- eof testing
[hal@feenix hal]$ testing
1
0
[hal@feenix hal]$ bash -version
GNU bash, version 2.04.11(1)-release (i386-redhat-linux-gnu)
Copyright 1999 Free Software Foundation, Inc.
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Hal B
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