Learning Regex (Was: Is it just me, or is there a reason for it?)

[Thomas Yao]

On Sun, Aug 15, 2010 at 11:09 AM, Steve Lamb <grey at dmiyu.org> wrote:
> Regex is one of the most useful things I have ever learned on a computer.
>  Being able to do in seconds what it can take hours to do manually with even
> the simplest of regex is worth the moderate effort.

Any good tutorials or books recommended for learning regexp?
Thanks

-- 
@ghosTM55
Mechanism, not policy