Originally forked from Mathias Bynens
You can clone the repository wherever you want. (I like to keep it in ~/Projects/dotfiles, with ~/dotfiles as a symlink.) The bootstrapper script will pull in the latest version and copy the files to your home folder.
git clone https://github.com/thompn/dotfiles.git && cd dotfiles && source bootstrap.sh
To update, cd into your local dotfiles repository and then:
source bootstrap.sh
Alternatively, to update while avoiding the confirmation prompt:
set -- -f; source bootstrap.sh