How to make a redirect using a regular expression?

Question

Nginx

hello everyone, help me to make redirects through regular expressions, there are more than a thousand pages on the site that are not needed, but have already been indexed, and they need to be redirected to others
, here are a few examples:
/zamena-gofry-kia-v-zelao-750/ > / zamena-gofry-kia-v-sao-750/
/pokraska-dveri-saab-v-zelao-750/ > /pokraska-dveri-saab-v-sao-750/

Answer 1

rewrite ^(.+)-zelao-(\d+)$ $1-sao-$2;
perldoc.perl.org/perlre.html for help