Ubuntu 12.04 LTS : change system language via CLI

small tips
Here’s how to change system language via CLI.

Edit /etc/default/locale

# cat /etc/default/locale LANG="en_US.UTF-8" LANGUAGE="en_US:en"

Edit /var/lib/locales/supported.d/local

# cat /var/lib/locales/supported.d/local en_US.UTF-8 UTF-8

Issue locale-gen command to reflect on it.

# locale-gen Generating locales...  en_US.UTF-8... up-to-date Generation complete.

Finally then reboot the OS

# init 6