.htaccess Rewrite help?

Question

I want to rewrite URL from
http://www.topofhosting.com/directory/
to
http://directory.topofhosting.com/
by .htaccess file
I need a sure and simple code.
Could you help me to doing this?

Thank you,
Joey

Answer 1

I think it would be something like

RewriteEngine On
RewriteCond %{HTTP_HOST} ^www\.example\.com/folder/(.*)
RewirteRule ^(.*)$ http://folder.example.com/$1 [R=301,L]


Its been a long time since I have done sub domains with this method I usually just make them an apache subdomain.