A very useful script.

I would like to add something to my own version of this script (as soon as I can find the time to do it, sorry ;) ):

• > Log files should speak clear and simple. Those are tools to work with even if the user ignores what the script is doing. After some time, I might forget what was the script doing. When preparing logs for large number of processed files it is easier to read one or two lines clearly identified with each file.
• > Making a more expressive table of regexes that could load inside a hash with different extensions and another generic key that would apply to all files. That would be easy by just starting from a standard template with fields to fill in. (A kind of ini file where lines starting with # wouldn't count as values. And keys would start without any tab character)
• > Modules could make this script useful for any platform!