On 2005-07-06, Paul Smith wrote:
>
> The disadvantage of the pipe-to-while method is that each element in the
> pipeline is run in a subshell, so variables set inside the while loop
> (for example) won't be set after the loop is complete[*].
find . | {
while read line
do
: whatever
word=${line%% *}
done
: variables set within the loop are still available here, e.g.:
printf "%s\n" "$word"
}
: but not here
--
Chris F.A. Johnson <http://cfaj.freeshell.org>
==================================================================
Shell Scripting Recipes: A Problem-Solution Approach, 2005, Apress
<http://www.torfree.net/~chris/books/cfaj/ssr.html>
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