Silent installer on linux

We are attempting to totally automate the install for foglight agent managers. We've spoken with support and they referred us to here. The installer for linux is not truly silent or headless and requires some human intervention. We are trying to find out if we can echo commands to the installer in order to bypass a human having to actually be involved in the process, or to see if someone else has another solution that has worked for them in the past.

Thanks!