screen command launches a terminal in the background which can be detached from and then reconnected to. This is especially useful when you log in to the system remotely. You can start a screen, kick off a command, detach from the screen, and log out. You can then log in later and reattach to the screen and see the program running.
To start a screen session type the command:
You can run any application normally.
To detach from the screen press the following keys in sequence:
To reattach to the screen type the command:
$ screen -r
More information is available in the manual pages visible by typing the command:
$ man screen