How to write a regular expression for nginx?

Question

Nginx

Hello. You need to set up a 301 redirect for nginx.
There is an address where name is any value: /test/*name*/test2/
Need to cut: test2/
As a result, it turns out: /test/*name*/

Answer 1

location ~ ^/(test/[^/]+)/test2/$ {
    return 301 /$1/;
}

Or
rewrite ^/(test/[^/]+)/test2/$ /$1/ permanent;