Cloning this repository:

git clone git://gitorious.org/robmyers/postscript-viruses.git postscript-viruses
cd postscript-viruses

Add this repository as a remote to an existing local repository:

git remote add postscript-viruses git://gitorious.org/robmyers/postscript-viruses.git
git fetch postscript-viruses
git checkout -b my-local-tracking-branch postscript-viruses/master_or_other_branch