Just modify your subject line by adding SOLVED on the end. The thread will remain for ever more in the annals of history. When I was a coder, we worked on algorithms. Today, we memorize APIs for countless libraries — those libraries have the algorithms - Eric Allman

bdeklerk wrote: Feel free to add other points that we could do with this project. A forum-post would not be the correct place for a longer-term project. Turn it into an article, and people could collaborate. You already have answers to the other questions, which leaves #3 for me; bdeklerk wrote: How do we check for duplicate files or directories, and remove one) You can iterate over all files and folders, and for each item; calculate a hash (like md5) and put it in a dictionary, with the hash as the key and the path as the value. If you hit a double key, you'll know that the content of both files is the same - even if the filenames and/or timestamps on the files differ. Good luck :) Bastard Programmer from Hell :suss: