301 redirect with a directory

Question

Following works fine

RewriteCond %{HTTP_HOST} !^www\.mydomain\.com$
RewriteRule ^(.*)$ http://www.mydomain.com/$1 [L,R=301]

Now I need to do the same but with a directory, like

www.mydomain.com/oldname/something to www.mydomain.com/NEWNAME/something

Answer 1

Before the rule that redirects the domain, add these rules:

RewriteRule ^/?oldname/(.*)$ http://www.mydomain.com/newname/$1 [L,R=301]