tmux is a terminal multiplexer like screen on steroids. It is faster, slicker and much more easily extendable than screen. For why you might want to try tmux over screen checkout
- http://dominik.honnef.co/posts/2010/10/why_you_should_try_tmux_instead_of_screen/
- https://www.wikivs.com/wiki/Screen_vs_tmux.
Tmux Powerline is an extension to tmux’s statusline which makes it look incredibly cool. Look at this screenshot.