These guides present the usage of RabbitVCS, a combined SVN and Git client run from the file manager's right-click menu. In this sense, RabbitVCS can be considered a Linux variant of TortoiseSVN.
RabbitVCS is available pre-packaged for a number of distributions. Guides for installation are available from the official webpage.
Given the sporadic update cycle of RabbitVCS, the version packaged in some distributions may be outdated and in the worst case may lack support for Nautilus 3.x - it is recommended to perform the installation as suggested on the website to ensure this functionality is present.