Update
for not wanting to include a module or steal the code from one, and no actual reason not to use a shell function other than "it wouldn't be pure Perl".
I'm still learning man and I want to learn perl not shell. I already tried to "steal" the code but you have no idea how many subroutines involves that module. I'm not so advanced to "steal" that code. I just want to find out a simpler way for: 
string2 - string1 = difference

[download]
It's not necessary to become rude. I thought this is a place where perl gurus can share their experience with newbs like me. But nevermind.

In reply to Re^2: Comparing $_ --- before/after by mrc
in thread Comparing $_ --- before/after by mrc

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