If you want to change the language the user root uses by command in Centos you need to run this:
export LANG=en_GB.UTF-8
This is for English if you want another language you need to change this to your language; en_GB
Making Linux Easier
If you want to change the language the user root uses by command in Centos you need to run this:
export LANG=en_GB.UTF-8
This is for English if you want another language you need to change this to your language; en_GB