Wordpress - Robots.txt to fix Duplicate Content

I need a robots.txt file to prevent dup content from being crawled

[jman123]

Here's the problem:

I'm doing some SEO for a site and the site also has a blog attached: http://www.example.com/blog/ . The problem is, there is duplicate content on the blog and I need a robots.txt file that will allow the bots to index only one copy of the content while avoiding the others.

For example, one post will appear in three different locations:

1. Category page
2. Single post page
3. Archive page

Ideally, I would like to only have the 'Single post page' to be the page that is indexed while the others are ignored by bots (but I want to keep all three copies for ease of the user navigation).

I know how to create a robots.txt page, but I'm not confident that I can pull this off without blocking pages on the root domain and/or blocking all but one copy of all content.

I know this is a common problem for Wordpress blogs, and I've done some research and found some answers, but I'm not confident in what I'm doing.

Is there anyone out there who has a robots.txt file addressing this same issue? Can I see it? I would greatly appreciate it.

Thanks

[edited by: encyclo at 1:48 am (utc) on April 27, 2007]
[edit reason] switched to example.com [/edit]

[skipfactor]

I copied this from here or somewhere. Seems to do the trick though haven't had time to confirm:

User-agent: *
Disallow: */feed*
Disallow: */trackback
Disallow: */wp-admin
Disallow: */wp-content
Disallow: */wp-includes
Disallow: *wp-login.php

[shyspinner]

All of my blog pages went supplimental on me. I'll try this, thanks.

[encyclo]

For WordPress, see the post by ogletree this earlier thread:

[webmasterworld.com...]

[g1smd]

Only Google understands the * wildcard notation.

Those MUST all go in the User-agent: Googlebot section of your robots.txt file.

[bouncybunny]

I didn't think that still applied.

[webmasterworld.com...]

[goodroi]

bouncybunny is correct, yahoo also handles the wildcard aka pattern matching.

the biggest players will handle it but most of the smaller players don't since it is not officially part of the robots.txt protocol.