%% "Chris F.A. Johnson" <[EMAIL PROTECTED]> writes:
cfaj> 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[*].
cfaj> find . | {
cfaj> while read line
cfaj> do
cfaj> : whatever
cfaj> word=${line%% *}
cfaj> done
cfaj> : variables set within the loop are still available here, e.g.:
cfaj> printf "%s\n" "$word"
cfaj> }
cfaj> : but not here
Good point; sometimes this is good enough. Not always, though--unless
you're willing to have the entire remainder of your script to appear in
the pipeline block :-).
A very handy technique to have in the toolbox though.
Cheers!
--
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Paul D. Smith <[EMAIL PROTECTED]> HASMAT--HA Software Mthds & Tools
"Please remain calm...I may be mad, but I am a professional." --Mad Scientist
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These are my opinions---Nortel Networks takes no responsibility for them.
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