Start GUI from command line on Ubuntu 20.04 Focal Fossa

In the following article you will learn how to start GUI (graphical user interface) from command line on Ubuntu 20.04 Focal Fossa.

In this tutorial you will learn:

Software Requirements and Conventions Used

Software Requirements and Linux Command Line Conventions
Category	Requirements, Conventions or Software Version Used
System	Installed Ubuntu 20.04 or upgraded Ubuntu 20.04 Focal Fossa
Software	Installed GUI
Other	Privileged access to your Linux system as root or via the `sudo` command.
Conventions	# – requires given linux commands to be executed with root privileges either directly as a root user or by use of `sudo` command $ – requires given linux commands to be executed as a regular non-privileged user

Here we already assume that you have successfully installed GUI on your Ubuntu 20.04 system.

Login to your terminal and execute the following systemctl command to start GUI:
```
$ sudo systemctl isolate graphical
```

In case you wish to start the GUI automatically during the system boot change the boot target from multi-user to graphical:
```
$ sudo systemctl set-default graphical.target
```