Help with using wildcard for dynamic URL

[AlfaNet]

Hi all,
I run a script which generates plenty of pages with mtdomain.tld/?g_XXXXX, which are dupe contents.

I think these cold be blocked with the following lines in robot.txt file:

User-agent: *
Disallow: /*?


But I need to Allow bots to crawl pages starts only with /?g_page=XX. So I'm thinking of robot.txt as below:

User-agent: *
Disallow: /*?
Allow: /?g_pages=*

is the above order correct? or I need to put "Allow" first?

Will the above lines tell bots to follow ONLY urls having "/?g_page" in them and not any other urls with /?g ?

Any suggestion will be appreciated.

[mistoovrool]

In google webmaster tool one facility available called
Analyze Robots.txt
From there you can place your robots.txt code and check whether crawler crawl that page or not.

[mamina]

From what I understand wildcards cannot be used in Robots.txt files. If I am wrong please let me know but that is what I have read.

Zelo

[manish.chauhan]

From what I understand wildcards cannot be used in Robots.txt files. If I am wrong please let me know but that is what I have read.

Zelo
Wildcards can be used in robots.txt as Google and yahoo bot supports and follow the wildcards in robots.txt..but MSN doesn't support the wildcards in robots.txt...:)