- run the installer
- select the DXP
- type your liferay.com username/password
- finish the progress
if there is no error happened it means work well for username/password, and you also can find/check there is a file named "token" under your $userhome/.liferay.
And go into the liferay workspace created by installer, run gradlew initBundle or gradlew downloadBundle to check the token works or not