An MD5 or SHA-256 sum would catch different files of the same size. However, they are computationally intense and in this use case overkill

Calculating the MD5 of a file should not be significantly slower than copying the file on a modern computer.

You could even optimize by delaying the MD5 calculation until you find a second file with same size and base name.

Alexander

--
Today I will gladly share my knowledge and experience, for there are no sweeter words than "I told you so". ;-)

In reply to Re^3: Finding old copies of files by afoken
in thread Finding old copies of files by Leitz

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