How do I set up RewriteRule for urls that all start with the same folder and then some but not all subfolders

Question

I am trying to write a rule to redirect some but not all of the content of a certain folder:

• ^folder1/ any .html files
• ^folder1/blackberry
• ^folder1/content
• ^folder1/data
• ^folder1/images
• ^folder1/docs

I need to use RewriteRule to send everything except ^folder1/blackberry to another site (eg, http://somedomain.com/main.html) and I'm sure there must a way to do this with regular expressions but I don't (yet) know how :-)

Answer 1

Use a rule to catch everything and exclude the exceptions with a RewriteCond directive:

RewriteCond %{REQUEST_URI} !^/folder1/blackberry$
RewriteRule ^folder1/ http://sub.example.com/main.html [L,R=301]

This rule redirects every request with a URL path that starts with /folder1/ except /folder1/blackberry externally to http://sub.example.com/main.html.