This is an interesting problem, and some people have already mentioned Win32::ChangeModify. I am wondering if there is a module for *nix that does the same thing, or is there a way to query the operating system to have the same effect?
Anyway, no drug, not even alcohol, causes the fundamental ills of society.
If we're looking for the source of our troubles, we shouldn't test people
for drugs, we should test them for stupidity, ignorance, greed and love of
--P. J. O'Rourke
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