How to recursively look up file extensions in a directory?

Question

linux

Sobsno speaking, if there are a lot of subfolders in a folder, in which there are a lot of subfolders and files in them. It is necessary to display the extensions of all files that are. For example, there are a thousand .jpeg files - then the output is 1000 files with the extension jpeg, .JPG - 500 files. Google didn't say anything.

Answer 1

So:
Or like this:

find . -type f | sed 's/.*\.//' | sort | uniq -c | sort -rn | head -50