halibut Package Installation on Mac

About abcde : Yet another free document preparation system!
More Information: http://www.chiark.greenend.org.uk/~sgtatham/halibut/
Steps:

  1. Launch Terminal by pressing command+space, type terminal and hit Enter key.
  2. Run
    ruby -e "$(curl -fsSL https://raw.githubusercontent.com/Homebrew/install/master/install)" < /dev/null 2> /dev/null
  3. Install
    brew install halibut

Done!