Setting Ubuntu locale

1. Edit /var/lib/locales/supported.d/local
2. Add locale

zh_TW.UTF-8 UTF-8

en_US ISO-8859-1

en_US.UTF-8 UTF-8

zh_TW BIG5

3. run locale-gen or dpkg-reconfigure locale
4. check locale -a

Ref: 設定 Ubuntu 的 locale (語系)