Tmux is a terminal multiplexor. It's very useful when working while tunneled through ssh or the likes.

Basic Commands

Tmux controls are, by default, initialized through ctrl + o. Another key is followed to issue a command. For the sake of conciseness, ctrl + o will be minimized as init.

create a new window: init + shift + 5
swap windows: init + o
kill current window: init + x + y

Further Exploring

A Quick and Easy Guide to tmux
tmux Github wiki
tmux cheat sheet