PERL is a relatively old technology which is being overtaken by Java tidal wave.
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Still PERL has much better Systems and Document handling capability than Java
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Very good for UNIX as much easier than Shell for system scripts -- PC versions exist but not so well integrated into O/S
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Wonderful regular expression handling
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PERL is traditional and probably best (today) choice for server CGI extensions and development of filters
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-- especially those for text documents
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PERL5 is object oriented but much less elegant (in my opinion) than Java
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PERL5 has very useful multidimensional associative and regular arrays
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PERL has well understood links to databases such as Oracle oraperl
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