Screen is terminal multiplexer. More simply, using Screen, you can have multiple terminal sessions running within a singular window. Each pane is running its own independent terminal session. Screen enables for long running sessions that won't disconnect!
Before getting into how to use screen, it is important to note all commands in Screen are trigged by a prefix key followed by a command. The Screen prefix key is
C- notation means press and hold the
C-a means to press the
Ctrl & a keys at the same time.
Install Screen on a Personal Machine
Use the following Terminal command to install Screen (depending on your Linux OS):
sudo apt-get install screen sudo yum install screen sudo dnf -y install screen
Use the following Terminal command to install Screen:
brew install screen
Navigating Screen Windows
Launch Screen (Start a Session)
To launch Screen, open your terminal window and execute the following command:
Create a Named Window
You can create a named Screen Window/session with the following command (where
sessionnameis descriptive title for your session):
screen -S sessionname
Navigate Screen Windows
Screen allows you to create multiple windows, similar to having multiple virtual desktops.
Create Additional Windows
Once within Screen, you can create additional windows at any time:
prefix + c
Change Screen Windows
To navigate through your Screen windows:
prefix + Ctrl+a
With this command, execute the Screen prefix two times!
Session Handling with Screen
One of the perks of using Screen is its ability to maintain sessions in the background. If you are done with your work for the day, you can keep the session alive in the background for later use.
Use the detach command to detach your current session so you can shutdown:
Detach All Windows
prefix + d
Restart Detached Sessions
To view a list of the Screen sessions running in the background:
You can resume the specific session with (where
sessionnumberis the beginning number of the session information):
screen -r sessionnumber