I want to make a bash script which add language in System after re-install
I don't want to use GUI (I know how to do it)
May be anybody now how to do it by command-line ?
P.S. Might I didn't say clearly
I don't want to change locale, I want to add language in keyboard. So after that I can change print language. In the end I need to have opportunity to switch between languages (for example Eng, Rus...)