http://qs321.pair.com?node_id=1228463

Manju Moorthy has asked for the wisdom of the Perl Monks concerning the following question:

I have a file with each line having dna sequences. I want to know how to compare each line of the file with the entire file, to get the number of times each line in the file has been repeated, using PERL?

each line of the file will contain one dna sequence per line