Manage Terminal Sessions with Screen

The screen command is a powerful terminal multiplexer that allows you to manage multiple terminal sessions within a single window. This is incredibly useful for running long processes, keeping sessions alive after disconnecting, and organizing your command-line work. Below are the essential commands for using screen effectively.

Essential Screen Command Usage

Here are the most common commands to get you started with managing your terminal sessions using screen:

# To start a new named screen session:
screen -S <session-name>

# To detach from the current session (leaves it running in the background):
Press Ctrl+A then press d

# To re-attach a detached session:
screen -r <session-name>

# To list all active screen sessions:
screen -ls

# To terminate a specific screen session:
screen -XS <session-name> quit

Understanding Screen Multiplexing

screen allows you to create, manage, and switch between multiple virtual terminals. Each virtual terminal can run its own process independently. This means you can start a script in one screen session, detach from it, log out, and later re-attach to find your script still running. It's an indispensable tool for system administrators and developers working remotely or managing complex server environments.

Further Resources

• GNU Screen Official Website
• Linuxize - How to Use Linux Screen
• Screen Man Page