Mac CLi - OS X command line tools for developers
You-Get - Command-line utility to download media contents from the web
CONV. - Convert YouTube video to MP3, GIF or MP4
Soft Serve - Soft Serve is a self-hostable Git server with a built in SSH interface, built for the command line.
Softorino YouTube Converter - Download YouTube video & audio. Watch and listen offline
Medium CLI - A command line Interface for reading Medium stories