Not quite. While it's a step in the right direction, your program dies on inputs (2) and (4), and returns the incorrect result for inputs (1) and (3). The OP's tool has a very odd usage syntax.
Oh, that was just for illustrational purposes. Of course it would be up to him to decide to which depth level to recurse based upon actual input. Indeed the requirements are quite strange...

In reply to Re^3: To retrieve all files according to given path list by blazar
in thread To retrieve all files according to given path list by devlele

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