open (DUPLICATE, "datafiles/linked_file.txt");
open (DUPremoved, ">" . "datafiles/linked_file_dup.txt");
print DUPremoved grep { !$saw{$_}++ } <DUPLICATE>;
close DUPLICATE;
close DUPremoved;

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In reply to Re: duplicate lines by Tomtom
in thread duplicate lines by Anonymous Monk

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