I had to compare the contents of two different 1Tb hard disk drives that had almost the same files (being one of them the backup of the other), but not being sure if the sync was updated.
A little research and I came through this interesting page, with a lot of command-line options…
…and an interactive comparison utility: meld.
You can’t miss any of those two: both the page and the app.
BTW, I’m using it on Linux, but there seems to be a win version of it. Just in case… 🙂
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