Store location change - 301,302,303

[gabinashop]

Hello. I am moving to new server and i have an question regarding store location change.

Currently my shop is located under url :  www.prestashopsite.com/webshop/

I want it to change on my new server to www.prestashopsite.com/

I already have too many indexed pages in google with following url - www.prestashopsite.com/webshop/some-url.html

When i chenge to the new server it will give 404 error. How can i fix this - everything under directory /webshop to be forwarded to main url.

The rewrite urls, ids, etc will be the same. I mean  :

www.prestashopsite.com/webshop/14-some-url.html   will be exactly the same on to www.prestashopsite2.com/14-some-url.html

Maybe it have something to do with .htaccess
Thanks  in advance.