robots.txt to prevent search engines from crawling/ indexing a page or folder

Would appreciate if someone can show us example of robots.txt that will prevent search engines like Google from crawling and indexing a page or folder. So that the page will not show up on search engine results.
Thanks

 

User-agent: *
Disallow: /


Google Webmaster Tools also has a great resource for this.

 

And it's as easy as that!

 

or you can do it in your .htaccess file

 

Something like this:

User-agent: *
Disallow: /folder_name/
Disallow: /filename.php

Code (markup):

be very careful with previously mentioned example as that one may block EVERYTHING on your site, for ALL search engines:

User-agent: *
Disallow: /

Code (markup):

Cheers.

 

Thanks for the post.Really quite interesting to know about the info.