How Wikipedia Works/tips
From phoebewiki
Tips for using Wikipedia that didn't make it into the book.
[edit] Category intersection
- There is no built-in way in the MediaWiki software to see which articles are in two particular categories. For pages on any of the Wikimedia projects, there is a tool to search a category for articles that fall into another category as well. The tool is called Cat Scan, and is available here. Enter the language code of the Wikipedia that you wish to search, then enter the category name that you wish to search. Then enter the name of the category or template that you wish to search for. This tool makes it possible, for instance, to search a given category for all articles in it that have a cleanup template.
