Terminal Multiplexer

tmux

navigating

Ctrl-b leftarrow move active window horizontally
Ctrl-b rightarrow move active window horizontally
Ctrl-b uparrow move active window vertically
Ctrl-b downarrow move active window vertically
Ctrl-b pgup/pgdown scroll up/down (window)
Ctrl-b [ + arrow keys scroll up/down (line)

listing, creating, renaming, killing

tmux ls list sessions
tmux kill -t sessionname kill tmux session with name $sessionname
tmux new -s sessionname create tmux session with name $sessionname
tmux rename -t sessionname newname rename $sessionname to $newname
tmux attach -t sessionname attach to $sessionname
Ctrl-b d detach from session

resizing

Ctrl-b ALT arrow_keys resize active window

spawning

Ctrl-b % spawn terminal horizontally
Ctrl-b " spawn terminal vertically