Sure is! Run tabadmin restore --help and you'll see a list of additional "things" you can feed in. What you want is --password.
Thank you Russell. I was able to bring up --help and see all the options available including --password. This was exactly what I was looking for and it worked perfectly. We purchased Tableau Server recently and this was one of the last pieces to set up. Thanks for your help and quick response.
Can you help me, in my environment for security reasons, i'm not allowed to save the Run As user password in a file to use it in the script. Are there some way to encrypt this password and use in the tabadmin restore command or use a impersonate account to run the restore command ?