I already linked you to File::System. You don't tell me where with the documentation you have problems and what problem you are trying to solve using File::System, so I can't be more specific than telling you to read the documentation.

If you find the documentation for module to be incomprehensible, I would recommend you use a different, better documented module. But recommending a module alternative means that I know what your goal is.

In reply to Re^3: can not find some method when using File::System::Object by Corion
in thread can not find some method when using File::System::Object by PhillipHuang

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