What's wrong with this .htaccess rule?

Question

htaccess

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

Here is a rule, in theory, it should redirect from shop.simple.ru to simple.ru, but somehow it does not work.

Answer 1

That's it, give the whole .htaccess config
not taken into account only www
For now, you can try like this
RewriteRule . %1/%2 [R=301,L]