Not sure if this helps, but with Maya 2020, I put a copy of the installer app & the xml config file (originally located in the Maya.app) in the /tmp folder, After which, I run this command
/tmp/Maya2020.app/Contents/Helper/Setup.app/Contents/MacOS/Setup -i deploy --silent -o /tmp/deployment_maya.xml
I would check to see if Mudbox has a similar deployment XML file buried in the Mudbox 2020.App
I was able to get Mudbox 2020 installed silently and registered using these instructions:
My Install Script:
#!/bin/bash # Install Mudbox 2020 /tmp/Autodesk/Install Mudbox 2020.app/Contents/MacOS/Setup --noui # Licence Mudbox 2020 /Library/Application Support/Autodesk/AdskLicensing/Current/helper/AdskLicensingInstHelper change --prod_key 498L1 --prod_ver 2020.0.0.F --lic_method "NETWORK" --lic_server_type "SINGLE" --lic_servers "servername"