Manual:Mcc.php/en

Details
mcc.php file is a maintenance script that works as a memcached diagnostic tool.

MemCached Command (mcc) is an interactive command tool that lets you interact with the MediaWiki memcached cache.

List of commands
These interactive commands are available in mcc.php:

Common error
This error occurs when an invalid command is given. See the list of valid commands.
 * Bad command