ok, ok, I know, it's way old but I can't resist to say this:
Your code does the LOOP as many times as there are files in the srcdir and it does a stat for ever file in srcdir in every LOOP as long as the file has not been moved yet (i.e. n! with n files). So if you have very many files in your srcdir, let's say 1,000,000 or so you will have a lot of unnecessary overhead.