quick answer... one way to do it is to use 2 for loops:

use warnings;
use strict;

my @ids = 0..5;
my @files = 3..8;
for my $id (@ids) {
   for my $file (@files) {
      print "$file\n" if $id eq $file;
   }
}

__END__
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[download]

Feel free to change the title of your node to something more useful like: "Check if 2 arrays match".