.htaccess cheatsheet
Redirect from a folder to a subdomain
I.e. redirect every request to http://example.com/folder to http://folder.example.com
RewriteEngine On
RewriteBase /
RewriteCond %{HTTP_HOST} ^example.com$ [NC]
RewriteCond %{REQUEST_URI} ^/folder.*
RewriteRule ^folder/(.*)$ http://folder.example.com/$1 [R=301,L]
Get rid of www
RewriteCond %{HTTP_HOST} ^www.example.com$ [NC]
RewriteRule ^(.*)$ http://example.com/$1 [R=301,L]