What is “rack” Package?

CLI for Rackspace
For more details: https://github.com/rackspace/rack

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 rack.

  brew install rack

Now, use rack!