What is “osh” Package?

Two ports of /bin/sh from V6 UNIX (circa 1975)
For more details: http://v6shell.org

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 osh.

  brew install osh

Now, use osh!