ruby -e "$(curl -fsSL https://raw.githubusercontent.com/Homebrew/install/master/install)"
More installation information and options at: https://github.com/Homebrew/homebrew/blob/master/share/doc/homebrew/Installation.md#installation.
ruby -e "$(curl -fsSL https://raw.githubusercontent.com/Homebrew/install/master/uninstall)"
Download the uninstall script and run ./uninstall --help
to view more uninstall options.