pico /etc/locale.gen
export LC_ALL=C
/etc/lcoale -a
#ko_KR.UTF-8 UTF-8 // korean en_US.UTF-8 UTF-8 // english
/etc/lcoale -a
CategoryHelp
#ko_KR.UTF-8 UTF-8 // korean en_US.UTF-8 UTF-8 // english