The easy render script is designed to be run using the xsibatch command to allow fast command-line only rendering. By bypassing the GUI it is possible to render scenes faster, especially memory hungry scenes. Also convenient if you want to work whilst rendering at low priority.
While it is possible to use one of the many batch rendering tools or writing a simple batch file / shell script it is not possible to render the same pass through different cameras. Although passes can be duplicated to allow different cameras, this is not ideal in scenes already containing many different types of passes.
As the script is a simple VBScript, it is possible to perform any operation during the batch process that is possible in the GUI.
To render using a script type: xsibatch -r -script "easy_render.vbs"
The script will need editing to work with other scenes - I have left it in a generic state at present.