Convert all file extensions to lower-case

Question

I\'m trying to lower-case all my extensions regardless of what it is. So far, from what I\'ve seen, you have to specify what file extensions you want to convert to lower-cas

Answer 1

recursively for all one fine solution:

find -name '*.JPG' | sed 's/\(.*\)\.JPG/mv "\1.JPG" "\1.jpg"/' |sh

The above recursively renames files with the extension "JPG" to files with the extension "jpg"