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  • Indeed the seems to follow the unix philosophy. By the way, the function you give in your answer works pretty good and it isn't listed in the answers of the question I'm referring to in my question, maybe you should add an answer that could be useful to other users :-) Commented Jul 5, 2015 at 20:01
  • ok, i added the answer. Commented Jul 5, 2015 at 22:37