keychain Package Installation on Mac

About abcde : User-friendly front-end to ssh-agent(1)!
More Information: http://www.funtoo.org/Keychain
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 keychain

Done!