vray -sceneFile="your_scene.vrscene" To test if it installed correctly, run:
Chaos occasionally offers a 30-day trial for V-Ray Standalone. On the main Chaos website, look for "Free Trial" and select "V-Ray Standalone" from the product list. You will need to create a trial account. vray standalone download
Here is the text you requested regarding downloading V-Ray Standalone. vray -sceneFile="your_scene