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 let you interact with the MediaWiki memcached cache.

List of commands
Following are interactive commands available in mcc.php

Common error
Only above list of commands are allowed, if you give others command then it will give Bad command error.
 * Bad command