Linux Screen

Apr 2020

Overview

When using Linux via SSH, if you get disconnected then you cannot rejoin that session. So if you were doing something like downloading a large file, then you can not reconnect to see the progress (the download would have stopped anyway once you disconnected).
This guide is based around CentOS7 (or RedHat).
Screen is a 'Terminal Multiplexer' which means you can start Screen and then open terminal windows. These windows will stay open if you disconnect and you can reconnect with them when you next join.

Check for Screen

Sounds great, do I have Screen?
From a terminal in Linux, enter the following:

screen --version

If you see a version number, you are good to go, check out the section Using Screen. if you see the message screen: command not found then you will need to install screen.

Installing Screen