trouble with Grep

mattgolsen's picture

I'm having some trouble with some syntax for the grep patch. I'm trying to search for a specific url (amazonaws.com) in some html that I'm pulling down using the "Kineme String with Url" patch. This is what I'm using but I can't seem to get it to work right.

http://s3.amazonaws.com/twitpic/photos/full/*\.jpg\?AWSAccessKeyId=*\$Expires=*\&Signature=*

Any suggestions on what I'm doing wrong?