Use whatever timestamp or string that suits you. That ISO format string is compatible with POSIX::strftime (so there's no need for the non-Core DateTime).
With a iso 8601 timestamp at the top of the file
If you are implying that the contents of each copied file should be modified, that is far beyond the scope of this simple tool.

In reply to Re^2: Version control system for the laziest of the lazy by toolic
in thread Version control system for the laziest of the lazy by toolic

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