Thread:Project:Support desk/Updating wiki help

I'm following this guide for updating the wiki, but am stuck at one part (https://gerrit.wikimedia.org/r/gitweb?p=mediawiki/core.git;a=blob;f=UPGRADE;hb=REL1_20)

From the command line
From the command line, browse to the "maintenance" directory and run the update.php script to check and update the schema. This will insert missing tables, update existing tables, and move data around as needed. In most cases, this is successful and nothing further needs to be done.

From what command line...dos prompt? how do I browse to maintenance directory and run the update.php script?

I did the wizard at /mw-config/index.php and it said update was complete and that I can now use my wiki, but I have a 500 error now, so I'm not sure if I have to do this command line update still or what.

Thanks!