ArchLinux

1. Get dependencies: search "rabbitvcs" on AUR, and the "Dependencies" of it contains:

   git
   pygtk
   python2-configobj
   python2-dulwich
   python2-gobject2
   python2-gtkspellcheck
   python2-pysvn
   python2-simplejson
   

2. Install rabbitvcs: yaourt -S git pygtk python2-configobj python2-dulwich python2-gobject2 python2-gtkspellcheck python2-pysvn python2-simplejson rabbitvcs

If any errors occurs during the installation, use yaourt to install it.

Ubuntu Unity

sudo add-apt-repository ppa:rabbitvcs/ppa && sudo apt-get update
sudo apt-get install rabbitvcs-core rabbitvcs-nautilus rabbitvcs-cli