How to install language support for Ubutnu:
If you want to add additional locales on your Ubuntu installation, check this out! Go to the locales folder:
$ cd /usr/share/locales
In that directory is a script to add a new locale or language pack. If you want to find out which language pack to install you can look at the /etc/locale.alias file. To install, for examples, Italian language support on Ubuntu, just run this command:
$ ./install-language-pack it_IT
$ dpkg-reconfigure locales
That’s it! Repeat these steps for any other locale you need.