OK, after spending almost an hour browsing this page, I still haven’t learned what’s the mv command that allows you to change the extension of many files. Say for example that I want to rename some files I have with the extension CR2_original to CR2. How can you do it, using mv?

I tried

mv *.CR2_original *.CR2

But it does not work.

So can we now stop this “Mac are better than Windows” chit-chat and have some help on the subject? I know, there are other programs to do that, but somehow, I thought that the above command should work.