Re^3: Filtering very large files using Tie::File

If the data's tab delimited, you could split your incoming line on tabs

my @w = split(/\t/,$_);
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and then build a key out of the first two fields and use that as your hash key

if ( !$seen{$w[0].$w[1]}++ ) {
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Alex / talexb / Toronto

"Groklaw is the open-source mentality applied to legal research" ~ Linus Torvalds

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Re^4: Filtering very large files using Tie::File by elef (Friar) on Nov 26, 2010 at 18:48 UTC
As far as I can tell, that does exactly what my regex does. I guess I'll stick with the regex.	[reply]