I was curious if there is an entry you can put into your robots.txt to deny the same page that has multiple variables. For example, I want to deny page.html but I also want to deny page.html?item=1 and page.html?item=2. Is it possible to put something in your robots.txt file that will deny all those pages instead of specifying each page with the item number? I have over 1 thousand items so this will take up a lot of room in my robots.txt file.
At least for Google, a robots.txt as follows would exclude anything starting with "/page.html" including "/page.html?item=1".
User-agent: * Disallow: /page.html
But don't take my word for it since I'm completely new to this; check it at Google Webmaster Tools which has a robots.txt analysis tool which allows you to test robots.txt rules against specific urls. V handy indeed. Dave.