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Re: Remove duplicate entries

by ikegami (Pope)
on Nov 16, 2010 at 23:37 UTC ( #871867=note: print w/ replies, xml ) Need Help??


in reply to Remove duplicate entries

Normalise the key (remove the junk characters) and use it as a hash key.

my %seen; while (<>) { my @fields = ...; my $key = normalise($fields[0]); print { $seen{$key}++ ? $unique_fh : $extras_fh } $_; }


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