http://www.perlmonks.org?node_id=1033557


in reply to how to merge this two array and update my files?

Why does the code have 3 '#!C:/Perl/bin/perl.exe -w' lines? Trying to start Perl 3 times won't make it 3 times as fast! ;-P

If you spot any bugs in my solutions, it's because I've deliberately left them in as an exercise for the reader! :-)