#!usr/bin/perl -w use strict; use autodie; my @human = 'C:\strawberry\perl\bin\humanpathway.txt'; open(HUMAN, "<", @human); my @hum =; my @output = 'C:\strawberry\perl\bin\output.txt'; open(OUTPUT, ">", @output); my @out =; my@bac = 'C:\strawberry\perl\bin\bactpathway.txt'; open(BACT, "<", @bac); my @bact =; my $hlindex= $#hum; my $blindex= $#bact; for (my $i=0; $i<=$hlindex; $i++) { chomp ($hum[$i]); my@arr1 = split ("\t",$hum[$i]); my$flag=0; for (my $j=0; $j<=$blindex; $j++) { chomp ($bact[$j]); my @arr2= split ("\t",$bact[$j]); if ( $arr1[1] eq $arr2[1] && $arr1[2] eq $arr2[2] && $arr1[3] eq $arr2[3]) { if ($flag==0) { print OUTPUT "$hum[$i]\n"; my $flag=1; } print OUTPUT "$bact[$j]\n"; } } } close HUMAN; close BACT; close OUTPUT;