What does a 301 redirect rule look like?

Question

htaccess

Moved the site to another CMS.
In the old CMS, URLs looked like this:

https://mysitename.ru/categoriya1/117-product-name2.html
https://mysitename.ru/categoriya5/28-product-name6.html

In the new CMS - like this:

https://mysitename.ru/product-name2/
https://mysitename.ru/product-name6/

Etc.
Help, please, to make a rule for a redirect.

Answer 1

Options +FollowSymLinks
RewriteEngine On

RewriteRule ^$/categoriya[0-9]+/[0-9]+-(product-name[0-9]+).html /$1 [L,R=301]