How to redirect a sub category change (.htaccess)

A sub directory has changed on my site and I need to redirect traffic from

http://url.com/old-sub/lo开发者_Python百科ts-of-content.php

to

 http://url.com/new-sub/lots-of-content.php

What is the code required to do this with .htaccess?

If mod_rewrite is available:

RewriteEngine On
RewriteRule ^old-sub/(.*)$ /new-sub/$1