#General tmux is a terminal multiplexer and allows you to split your terminal window into multiple panes or having multiple windows. Furthermore it supports sessions, but these are not described in the cheat sheet.
#Installation
sudo apt-get update
sudo apt-get install tmux
#Running tmux
tmux can be run from within an terminal window by typing tmux
#Commands
tmux commands are introduced by hitting <CTRL>+b followed by the command.
#Windows
<CTRL>+b c creates a new tmux window
<CTRL>+b , rename a window
<CTRL>+b p previous window
<CTRL>+b n next window
<CTRL>+b w list window / select
#Panes
<CTRL>+b % split window (create pane) vertically
<CTRL>+b : split-window split window (create pane) horizontally
<CTRL>+b o next pane
<CTRL>+b x exit pane
<CTRL>+b q<number> access pane by number, e.g. <CTRL>+b q1
<CTRL>+b [ enable scrolling history in current pane (use mouse or pgUp / pgDown)
q leave scroll view in pane
<CTRL>+b : resize-pane -D Resize the current pane down
<CTRL>+b : resize-pane -U Resize the current pane up
<CTRL>+b : resize-pane -L Resize the current pane left
<CTRL>+b : resize-pane -R Resize the current pane right
<CTRL>+b : resize-pane -D 10 Resize the current pane down by 10 cells
<CTRL>+b : resize-pane -U 10 Resize the current pane up by 10 cells
<CTRL>+b : resize-pane -L 10 Resize the current pane left by 10 cells
<CTRL>+b : resize-pane -R 10 Resize the current pane right by 10 cells