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( [id://3333]=superdoc: print w/replies, xml ) Need Help??
A little bit faster:
use strict; use warnings; open my $data_fh, '<', "data" or die $!; open my $patern_fh, '<', "pattern.txt" or die $!; my %patterns; while (<$patern_fh>) { $patterns{join $;, split} = (); } close $patern_fh; { local $, = "\t"; local $\ = "\n"; while (<$data_fh>) { my @line = split; if (exists $patterns{$line[0] . $; . $line[1]}) { print @line[0, 1, 3]; } } } close $data_fh;

In reply to Re^2: Pattern matching across two files, Need something better than grep -f! by Anonymous Monk
in thread Pattern matching across two files, Need something better than grep -f! by anasuya

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