Byobu
keyboard shortcuts
F9 - Configuration menu
Alt + F5 - Toggle UTF-8
Shirt+F2 or Ctrl+a | - Split screen horizontally
Ctrl+F2 or Ctrl+a % - Split screen vertically
Ctrl+a :resize-pane -L 20 - Resize increase left of current window pane by 20 units (other available ones are -D, -R, -U)
Ctrl+a Tab - Next to the next screen in a split screen
F2 or Ctrl+a c - Create a new window
F8 or Ctrl+a A - Rename the screen
F3 or Ctrl+a Ctrl+a - Go back to the previous window
Ctrl+a <0-9> - Switch to screen #0-9 (quick toggle)
Ctrl+a " - View a list of the current screens, which will allow you to select one from the list
Ctrl+a ' - Enter a screen number to switch to (slower version of Ctrl+a <0-9>)
Ctrl+a d - Detach the whole screen session and fork to the background. Very useful for remote sessions you want to leave open. The command "screen -r" will resume your screen session.
Ctrl+a Esc - Scroll up through your command line "history" and see what output you previously got. Hitting <Escape> again cancels it.
Ctrl+a :clear-history - clear history in the viewing buffer
Nested remote session
Ctrl-a a c - Create a new session