Use of bean shell in liferay.

In the control panel -server-serveradministrator we have various tabs. In this tabs we have scripts.
In this we have various languages in the drop down. One language is bean shell.

It is used to execute the the java code directl. Like we want to get all the users or want to update user information we can do directly by bean shell.

Example: From the code snippet we are getting the user first name directly.