How to make a regular expression for 301 redirects?

Question

Regular Expressions

The bottom line is this:
there are pages like site.ru/catalog/name-1/category
where name-1 is a variable, i.e. category name
by 301 redirect and using regular expressions, you need to redirect the page to
site.ru/catalog/name-1/
i.e. in other words, "remove" the category at the end of the url.

Answer 1

Something like this True, this is for Nginx, I do not know what kind of web server you have.