foreach (<$ah>) { my @text = split(/\t/); for my $value (@text[11]) { if ($bHash{ $text[3] } eq $value) { $bHash{ $text[0] } = $value; last; } print OUT2 join( "\t", @text[1,2,3,4,11,5,6,8,7,11,12]),"\t1\t1\n"; } } close $ah;