Exa is a drop in replacement for your Mac’s standard tool ‘ls’. It provides a
wider screen listing over ls along with useful extras like Git information. In
the screenshot below you can see a N depicting new file within the posts
directory.

It features really useful colour coding that takes a short while to get used to but after that allow quick identifying of files and runs on a whole host of different operating systems too.
I’m that much of a fan for exa, I’ve added it to my recommendations page with other great software.