How to disallow google and roger?

[iFix]

Hey Guys and girls,

i have a question, i want to disallow all robots from accessing a certain root link:

Get rid of bots

User-agent: *

Disallow: /index.php?_a=login&redir=/index.php?_a=tellafriend%26productId=*

Will this make the bots not to access any web link that has the prefix you see before the asterisk? And at least google and roger will get away by reading "user-agent: *"? I know this isn't the standard proceedure but if it works for google and seomoz bot we are good.

[RyanKent]

In short, yes that will work.

To be clear, you can have multiple links which all lead to the same target page. The target of that link could still be indexed if there are other unblocked links which point to it.