I have 4 external hard drives that have similar folder structures, but they are not all in sync. What I would like to do for example is have Drive A is my main backup drive and compare drive a:\temp with drive b:\temp etc and if the file already exists in A, delete it from B. Thing is I have several subdirectories in temp and I want them all to be scanned as long as I pick the parent directory. I tried doing this with a /mir switch in robocopy but it only runs in the current directory and not through the subdirectories. Most of these files are installers , isos and pictures that im trying to clean up . are there any duplicate finder programs that will do this?
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