Sometimes, it would be really useful to run Rhino from the command prompt - perhaps you are batch processing some files, or maybe you need to run Rhino from a render farm management system. Rhino 4.0 provides the /runscript command line switch to allow you to do exactly this. The format is:

        rhino4.exe /runscript="_-command _-secondCommand"

For example, if you want to start Rhino with a file called hdri_test.3dm, render it with the built in renderer, save the file and exit Rhino, here's a magic command script:

        "c:\program files\Rhinoceros 4.0\system\Rhino4.exe" /runscript="_SetCurrentRenderPlugIn 
        ""Rhino Render"" _render _-saverenderwindowas ""test.jpg"" _closerenderwindow _-exit" 
        hdri_test.3dm