What you're asking for is an automation tool called a "web crawler" or "spider" (IT guys love their jokes). Just a heads up, websites have a million reasons why they don't like such tools and will very likely block your ability to do it easily.

Here's one for Wikipedia. No clue if it's baked in for just the main site or if you can use other wikis: https://janus-tg.github.io/Araneae/

If you want to do it right, learn python and have fun! There are scripts to pull web text contents, then you can truncate the parts you don't want like the header, page tabs, and reference footer using string-parsing functions.