Tmux

Tmux is a terminal multiplexer; it allows you to create several "pseudo terminals" from a single terminal. This is very useful for running multiple programs with a single connection, such as when you’re remotely connecting to a machine using SSH or for running long running scripts that would stop once you close your connection.

For a short intro see https://www.redhat.com/sysadmin/introduction-tmux-linux

Install via sudo apt-get install tmux (or any other package manager)

Open a new session via

tmux

Use the shortcut Ctrl+B then D to detach from tmux.

To look at all running sessions with their ID/index use the ls command. If you have only one, then it will be session 0.

tmux ls

To reattach to a running session use the ID/index like this.

tmux attach -t 0

Enter a session and type exit to leave and close it.

Stopping the currently running task can be done like usual via the shortcut Ctrl+C.

This is a summary of all useful shortcuts:

• Ctrl+B D — Detach from the current session.

• Ctrl+B % — Split the window into two panes horizontally.

• Ctrl+B " — Split the window into two panes vertically.

• Ctrl+B Arrow Key (Left, Right, Up, Down) — Move between panes.

• Ctrl+B X — Close pane.

• Ctrl+B C — Create a new window.

• Ctrl+B N or P — Move to the next or previous window.

• Ctrl+B 0 (1,2…) — Move to a specific window by number.

• Ctrl+B : — Enter the command line to type commands. Tab completion is available.

• Ctrl+B ? — View all keybindings. Press Q to exit.

• Ctrl+B W — Open a panel to navigate across windows in multiple sessions.