I'm not comfortable with the idea of shelling so often. ... I have the feeling TIABWTDI (there is a better way to do it)

Indeed. That entire sequence of shelling out to get date components can be replaced in one of several ways.   perldoc -f localtime will give you info on one approach.

In reply to Re: Modifying date/time stamps by dws
in thread Modifying date/time stamps by semio

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