I do recommend O'Reilly's Perl Cookbook. I have the second edition, and its chapter titles include: Strings; Numbers; Dates and Times; Arrays; Hashes; Pattern Matching; File Access; Subroutines; References and Records; Database Access; Process Management; CGI Programming; and XML. It provides many examples and has a robust 30-page index, and certainly covers all the questions you've raised in this thread.

In reply to Re^5: tab delimited extraction, formatting the output by hbm
in thread tab delimited extraction, formatting the output by zzgulu

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