Changing a program is usually done using a text editor, and the process is commonly called "programming".
You will have to employ both, and some understanding of what actually happens in the program. I suggest you read File::Find and perlop to understand the program you have, and then come back if you have specific questions as to how a particular construct in the program works, or what change you made and why it behaves the way it does.
In reply to Re^3: Putting all the files in an array
by Corion
in thread Putting all the files in an array
by Anonymous Monk
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