What's wrong with this expression?

Hi,
    I am quite a newbie in the magnificent world of Regular
Expressions
but I'm already hooked! Can someone please suggest t me
what's wrong
with this regex?

$ egrep -i 'www(\.[a-z][a-z0-9])+\.[a-z]+' testfile

where testfile contains various URLs such as

www.rootshell.be/~timmy
www.google.com
www.bartleby.cs.edu.com/YahooGoogleMicrosoft, etc.

I am using egrep version 2.5.1 in Red Hat Linux.

Regards,

Timmy Jose.


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"ZOLTAN" <zoltan.josegmail.com> wrote:
>
>
>Hi,
>    I am quite a newbie in the magnificent world of
Regular Expressions
>but I'm already hooked! Can someone please suggest t me
what's wrong
>with this regex?

In this case, your problem is that you don't have a
quantifier after that
last character class before the closed parenthesis, so it's
only looking
for 2 characters after the dot.

www(\.[a-z][a-z0-9]+)+\.[a-z]+

That simple change and it will match all the domains, but
naturally nothing
after.

See her in action: http://tinyurl.com/eb7r5

Allen

-- 
Remember, no matter where you go, there you are. -Buckaroo
Banzai
Online Regex find/repalce utility: http://rereplace.com
Command-based online image editor: http://theprawn.com/imag
iine

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