My UNIX dotfiles bared for the world to see. (Well they were originally Toby Tripp's, then Sudhindra Rao's, and now Patrick Turley)
git clone http://github.com/betarelease/dotfiles.git dotfiles cd dotfiles ruby install.rb
bash < <( curl http://github.com/betarelease/dotfiles/raw/master/local-install.sh )
Now you can cleanly uninstall and reinstall your dotfiles.
Remote Server Installation
The repository contains a script for setting up some bare-bones dotfiles on remote servers. These files include things like screen configuration, a simple bashrc, and the sort.
Install with: bash < <( curl http://github.com/betarelease/dotfiles/raw/master/remote-install.sh )
This just clones or updates the repository and links back bashrc and screenrc.