Redirecting from subdirectory?


I’m about to migrate my blog to DreamPress with same domain name. However, my current wordpress at my old host is in a subdirectory.

How do I create a redirect so that if someone clicks on an old link from that subdirectory then they will automatically be redirected to that same link that will now be located in the root directory? Is that possible? Or if you could point me to a link to read up on it.

Thanks for any help!