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I have >100 folders that I would like to compare. I don't want to merge, but simply make sure that the content of those folders are the same. How can I do this on Windows and without Beyond Compare?

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Which version of windows? – EBGreen Sep 5 '12 at 21:55
Windows 2008 R2. – Martin Sep 5 '12 at 21:56
Why not Beyond Compare? Just the cost or is it not working how you would like it to? – Goyuix Sep 5 '12 at 22:23
Yep, I use Beyond Compare for this sort of stuff. Or write a "quick and dirty" Java program. – Daniel R Hicks Sep 6 '12 at 2:06
Beyond Compare for more than 100 folders doesn't really scale. – Martin Sep 6 '12 at 9:28

I usually use Winmerge to compare trees. You can obviously use it to do some merging, but you don't have to. And it's free.

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Any good Unix-style cmp binary compare utility with a recursive option will do what you want. Not sure if Cygwin's cmp will do that but the cmp I include with my Hamilton C shell certainly will. Full disclosure: I'm the author.

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