Prior to the development of ASDM (which was relatively recent), console commands were the primary method of interaction with ASAv devices. As such, the Command Line Interface (CLI) is quite robust and very useful for quick troubleshooting or configuration. Many of the tasks described here can be accomplished very quickly with the proper CLI commands.
To open the console window, select Tools, then Command Line Interface.
This will open the CLI window, where commands can be typed. Send the commands using the “Send” button, then responses will appear below in the Response window.