How to write a dynamic address in robots.txt?

Question

Google

How to write a dynamic address in robots.txt. for example, I have such an address:
/news/234234where is the /234234/dynamically changing part and there is an address for printing this same page. /news/234234/print
I do not want search engines to index duplicates, that is, to prohibit indexing /news/234234/printand I want other pages to be indexed.
Now robots.txtit looks something like this:

User-agent: *
Disallow: /news/*/print
Allow: /
Host: site.com
Sitemap: http://site.com.ru/sitemap.xml

Answer 1

That's right, you banned urls starting with print. Everything else is settled