Redirect Sub-Domain and Directory with same name

Question

I'm need to do the following redirects From: http://xyz.domain.com/2012/01/sample.html To http://www.domain.com/2012/01/sample.html

and also

From: http://www.domain.com/xyz/2012/01/sample.html To: http://www.domain.com/2012/01/sample.html

I'm pretty clueless on this, can somebody help me how to accomplish the same.

Thank.

Answer 1

For the first redirect:

RewriteCond %{HTTP_HOST} !^www\. [NC]
RewriteCond %{HTTP_HOST} ^([^.]+)\.domain\.com$ [NC]
RewriteRule ^(.*)$ http://www.domain.com/$1 [L,R=301]

For the second redirect:

RewriteRule ^[^/]+/(\d{4})/(\d{2})/(.+)$ /$1/$2/$3 [L,R=301]