htaccess problem with canonical url

[tozi]

Hi all, i need add this code to htaccess of my presta.

RewriteEngine On
RewriteCond %{HTTP_HOST} ^obchodpetrklic.cz [NC]
RewriteRule ^(.*)$ http://www.obchodpetrklic.cz/$1 [L,R=301]

But this doesnt work.

 

Hi, I would need the address of the web with www. I'm a newbie from work with htaccess

Edited May 28, 2014 by tozi (see edit history)