Bluetooth Shield V2.0 command mode

I need to enter in command mode for checking the result of some AT commands. How can I achive this?
The shield is the Bluetooth Shield V2.0.
I need a small piece of code for type AT commands from Arduino IDE Serial Monitor and see the results.
I’ve always found scketches that initialize the Bluetooth shield sending AT commands in the setup function without waiting for the results. I need instead to create a dumb terminal for testing the settings by AT commnds, nothing more.