That code assumes that the lines are in some way ordered before you code is run.

The quickest way I can see to modify your code is:

open (DB,"flat-file.txt") or die "couldn't open flat-file.txt: $!";
my %seen;
@content= grep {!$seen{$_}++} (<DB>);

[download]
(<DB>) creates an array, which we grep for unique elements. Well we really just throw out the duplicates because they create duplicate keys in %seen.

Though it would probably be better not to slurp the entire array into memory unless you really need to.

-Blake

In reply to Re: Re: Re: Killing dupes by blakem
in thread Killing dupes by HTTP-404

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