With the release of Google Chrome 4.0.237.0 it includes support for scripts using Greasemonkey and it has been firmly integrated into the browser. Now to install scripts you don’t need a command line in Chrome. The User.js files automatically can be added as an extension.

For example: If you call one of the userscripts from userscripts.org Google Chrome will download the script and then open the same dialog as and when installing extensions. After confirmation, the script is installed and activated on Google chrome.

Note: This only works on Google Chrome version 4.0.237.0.