The process is pretty straight forward first add the google PPA, then it updates thesoftware sources, then it installs google-chrome, and last but not least it comments out the google-chrome.list url addresses so it doesn't update the 32 bit version as well as 64 bit on subsequent apt-get updates. You will now have the scripts 1) the script that adds the googPpa.sh and 2) the script that installs google-chrome (googGt.sh).