Any desktop search software supporting regular expression?

Question by tomy: Any desktop search software supporting regular expression?
Is there any desktop search software supporting regular expression?

Thanks in advance!
Chin-Yang
The “desktop search software” here means tools like “Google Desktop” or “Yahoo! Desktop Search”. I want to search my local pdf files with regular expression.

Best answer:

Answer by Bogus_Dude
Cygwin’s unix tools. http://www.cygwin.com/

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