I changed the archive page for content from wiki to articles so content went from urls went from
https://mydomain.com/wiki/article-slug to https://mydomain.com/articles/article-slug
I am trying to write a redirect to redirect all the old URLs to the new URLs I tried this but it doesn't work.
Original url - ^/wiki/. Target url - /articles/.\*

I am really scratching my head on this one. I clones a WP install from a subdomain to a new separate domain. Previously I had a redirect from the domain to the sub domain but after the clone and setting the config and htaccess files mydomain.com is still redirecting to sub.mydomain.com. I clear cached the and checked every existing configuration I could think of but it is still redirecting. What am I missing?