Steps to get up and running with Grunt.js, from scratch.

setup.sh

# install nvm
# see https://github.com/creationix/nvm
# be sure to restart your terminal after this step
curl https://raw.github.com/creationix/nvm/master/install.sh | sh

# install Node
# use nvm. if you cannot, download binary from Node website http://nodejs.org/download/
nvm help
nvm ls-remote
# install a recent version
nvm install 0.10

# install Grunt CLI
# http://gruntjs.com/getting-started
npm install -g grunt-cli bower

# working with existing Grunt project
cd path/to/project
npm install && bower install

# be sure to read to docs for the project and check out the Gruntfile.
grunt