字型, font

Env: Debian, Ubuntu

Free font download:
1. JetBrains Mono更適合閱讀程式碼的等寬字型, Download(zip file)
2. Cascadia Code 微軟釋出免費等寬字型

Font path:
    /usr/share/fonts

Install new fonts:

1. $ sudo apt-get install ttf-mscorefonts-installer
   $ sudo apt-get install fontconfig

2. Copy fonts or dir_fonts to /usr/share/fonts

3. $ sudo chmod -R dir_fonts 755

4. $ sudo mkfontscale
   $ sudo mkfontdir
   $ fc-cache -fv

System Language:
/etc/default/locale – on Ubuntu/Debian

LANG=en_US.UTF-8
LANGUAGE=
LC_CTYPE="en_US.UTF-8"
LC_NUMERIC="en_US.UTF-8"
LC_TIME="en_US.UTF-8"
LC_COLLATE="en_US.UTF-8"
LC_MONETARY="en_US.UTF-8
LC_MESSAGES="en_US.UTF-8"
LC_PAPER="en_US.UTF-8"
LC_NAME="en_US.UTF-8"
LC_ADDRESS="en_US.UTF-8"
LC_TELEPHONE="en_US.UTF-8"
LC_MEASUREMENT="en_US.UTF-8"
LC_IDENTIFICATION="en_US.UTF-8"
LC_ALL=en_US.UTF-8