Tmux
Tmux is a terminal multiplexer: it enables a number of terminals to be created, accessed, and controlled from a single screen. Tmux may be detached from a screen and continue running in the background, then later reattached.
When tmux is started it creates a new session with a single window and displays it on screen. A status line at the bottom of the screen shows information on the current session and is used to enter interactive commands.
See man tmux further information
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