How to redirect a website using .htaccess?

Redirect website http://mydomain.com to http://www.mynewdomain.com

RewriteEngine on
RewriteCond %{HTTP_HOST} ^mydomain\.com$
RewriteRule ^(.*)$ http://www.mynewdomain.com [R=301,L]

Redirect website mydomain.com with and without www requests to http://www.mynewdomain.com (more…)