How to make a redirect to a subdomain from a domain folder?

Question

htaccess

how to do it as a Redirect to a folder for a subdomain through the RewriteRule only in reverse. From the domain folder, for example, domer/opt, make a redirect to a subdomain. Do I need to create htaccess in this folder.

Answer 1

added to htaccess the following RewriteRule ^opt/(.*)$ http://subdomain.domain.ru/$1 [R=301,L]