With this short snippet you can install the free and nonfree repositories from rpmfusion and the livna repository.
su -c 'yum localinstall --nogpgcheck http://download1.rpmfusion.org/free/fedora/rpmfusion-free-release-stable.noarch.rpm http://download1.rpmfusion.org/nonfree/fedora/rpmfusion-nonfree-release-stable.noarch.rpm http://rpm.livna.org/livna-release.rpm'More information:
