VMware has released a new generation command line interface called CloudClient. The 46MB sized ZIP file is freely available in the VMware Developer Center. It’s a java application and runs on every machine with JRE 1.7. The connectivity to several VMware vCloud products is implemented in plugins.
Extract the downloaded zip file in an appropriate location.
The zip file includes some documenation in html format which can be browsed with the starting page doc/index.html Further usage scenarios are described on the official CloudClient Blog