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How to extract duplicate lines from a text file?

by rnaeye (Friar)
on Mar 01, 2011 at 05:27 UTC ( [id://890680]=perlquestion: print w/replies, xml ) Need Help??

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  1. or download this
    99_99_992
    99_999_930
    ...
    99_99_9992
    99_99_9992
    99_99_9992
    
  2. or download this
    99_99_992    chr16.fsa    11064    11088    TAGGTAAACGAGGAGTCTTTCAATA 
    +   -    25
    99_999_930    chr04.fsa    148776    148800    TGCAAACGAGGACAACCTGTTTG
    +TG    +    25
    ...
    99_99_9992    chr12.fsa    468138    468162    CTATGTTTTCTTACTCCTATGTC
    +TA    -    25
    99_99_9992    chr12.fsa    468138    468162    CTATGTTTTCTTACTCCTATGTC
    +TA    -    25
    ...
    
  3. or download this
    99_999_930    chr04.fsa    148776    148800    TGCAAACGAGGACAACCTGTTTG
    +TG    +    25
    99_999_930    chr04.fsa    148882    148916    CCGGAAAAATTTGCTATTGGAAG
    +AGGTGGCGCTGG    -    35
    99_99_999    chr12.fsa    468017    468049    TTTTCGGTGACGGAAATACGCTTC
    +AGAGACCCT    +    33
    99_99_999    chr12.fsa    468138    468162    CTATGTTTTCTTACTCCTATGTCT
    +A    -    25
    
  4. or download this
     
    #!/usr/bin/perl
    #use strict;
    ...
    
        
    close IFILE;
    

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