Is there a way to download a list of all Wikipedia categories?
You can download the Wikpedia categories from here. Here is the latest categories in SQL format.
This is a duplicate of this SO question.
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3duplicate of this SO question. - maybe it should not be in SO? besides - Page Not Found – AndriuZ Jul 13 '18 at 12:49
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1the SO question is archived here: web.archive.org/web/20150107010555/https://stackoverflow.com/… SO mods are idiots. – Aleksandr Dubinsky Mar 30 '19 at 11:04
This is really a general MediaWiki question, not a Wikipedia question, since there's nothing special about Wikipedia in this regard.
There is a stable, documented, way to obtain a list of all categories from a MediaWiki server. It is documented in the MediaWiki API documentation. You simply need to write, or obtain, a tool that makes use of this protocol.
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This is not "general MediaWiki question", because: 1) MediaWik does not contains Wikipedia's content; 2) Wikipedia users has no access to DB, only to dumps. – AndriuZ Jul 13 '18 at 13:16
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@AndriuZ You don't understand. MediaWiki is software, not content. The MediaWiki API is exposed by sites like Wikipedia, Wiktionary, and others. – Aleksandr Dubinsky Mar 30 '19 at 11:49
Use the API. A list of API clients is here: https://www.mediawiki.org/wiki/API:Client_code
For example, using the command-line wikiget:
./wikiget.awk -z wiktionary -c "Spanish proper nouns" > output.txt
