How to install Linux Screen utility?

Check whether Screen is installed
```
which screen
```
If Screen is not installed on your system, run the following command:
1. If your system uses yum, you can install Screen with the command below
```
yum install screen
```
2. If your system uses apt, you can install Screen with the command below
```
apt install screen
```
To run a Screen session, enter the screen command.
```
screen
```
If your session disconnects for some reason, log back in to your server and run the screen -r command.
```
screen -r
```
This will reconnect you to your Screen session.

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