Change system language on Ubuntu 20.04 from command line

The objective of this tutorial is to change system’s language from a command line on Ubuntu 20.04 Focal Fossa Server.

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	N/A
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

First step is to check the current system language settings. To do so execute the locale command with no arguments:
```
$ locale
```
Check the current system language settings using locale command.
Reconfigure, the current system language settings. To do so execute the bellow dpkg-reconfigure command:
```
$ sudo dpkg-reconfigure
```
Re-configuring current locales language settings

DID YOU KNOW?
The systemd specific command to change system language is localectl which allows for more configuration options. However, in this case using dpkg-reconfigure is easier as it also automatically downloads the required language pack and directly provides the user with an option to set new system language in one go. In any case it is worth to check the man localectl for more information.

Next, select your desired system language.

Select system language from the menu using navigational arrows and SPACE. Once ready move to OK and press ENTER
Select which language you wish to use as primary language for the entire system.
Log out and log in to confirm your selection by execution the locales command.

Check new language settings