How to install and use "Screen" on Centos and Ubuntu

This article will introduce you to a handy application called "Screen"

We all are familiar with Terminal OR SSH OR Putty.
We all knows the limit of these tools if we close terminal, we lost our progress. So to handle this problem, There comes Screen to manage all connections.

Installation of screen on Centos6, Cents7

 $ sudo yum install screen

Installation of screen on Linux, Ubuntu

 $ sudo apt-get install screen

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