You can use the tool through the command-line interface (CLI) or the GUI.
To run the Upgrade tool in CLI mode, invoke the asupgrade command with the -c/--console option. You can run the upgrade CLI in the interactive or non-interactive mode. If you supply all required arguments when invoking asupgrade on the console, the upgrade is performed in non-interactive mode and no further input is required. For a complete list of asupgrade options, refer Table 2–3. If you invoke the tool only with the -c/--console option, the tool enters the interactive CLI mode, where the user is asked for a series of inputs.
Ensure that the -c/--console option is the first option in the command line, if you want to run asupgrade in CLI mode. Do not run upgrades through the silent installation mode.