sudo apt-get install ruby sqlite

sudo gem update --system

sudo gem install bundler rake rubocop

git clone git://github.com/beefproject/beef.git

cd beef

sudo bundle install

# up

cd ..

sudo mv beef/ /opt/

echo -e '#!/bin/bash\ncd /opt/beef/\n/opt/beef/beef "$@"' > ./beef && sudo mv ./beef /bin/beef && sudo chmod +x /bin/beef

https://github.com/beefproject