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select only duplicate entriesby Anonymous Monk |
on Aug 24, 2006 at 07:57 UTC ( [id://569311]=perlquestion: print w/replies, xml ) | Need Help?? |
Anonymous Monk has asked for the wisdom of the Perl Monks concerning the following question:
Hello all! I want to know how I can select only duplicate entries in a text. For instance, assume the following text sample: What I want to print is in a separate file the proteins that appear once, and, in another file, the proteins that appear twice, three times etc... Any ideas? Thank you!
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