For JavaScript or CSS single-file projects it's actually quite simpler to wget the one file from the Raw URL (or copy-paste the contents into a new buffer in your editor), than to clone/download the archive and then move the file from the downloaded directory and then clean up the other downloaded files.
edit For example, `curl https://raw.github.com/documentcloud/backbone/master/backbon... > js/lib/backbone-min.js`