Rule 5 is to search the forum database prior to asking a question. I don't really understand your search problem, but unregistered users can not post technical questions anyway. Even if the google search had worked in a way that you regard as perfect yet had failed to answer your unix question, you would still have no way to pose your question. This particular forum is a way for unregistered users to get some help with the task of becoming registered users. We simply delete technical questions posted here. Like the title says:

Forum Support Area for Unregistered Users & Account Problems Use this forum if you cannot login to the forums. NO TECHNICAL QUESTIONS - Guest who are not registered or have trouble with registration must post here for admin support.

This brings me to my suggestion for you: become a registered user. You have actually read the rules. Impressive! I'm sure you are destined to be a valuable site member.