What is “nkf” Package?

Network Kanji code conversion Filter (NKF)
For more details: https://osdn.jp/projects/nkf/

Installation

• Open Terminal by pressing command+space then type terminal and hit Enter key.
• Install homebrew first.

  ruby -e "$(curl -fsSL https://raw.githubusercontent.com/Homebrew/install/master/install)" < /dev/null 2> /dev/null

• Install nkf.

  brew install nkf

Now, use nkf!