Extension:GoToShell

The GoToShell extension implements a special page that takes the user to shell and back. This extension is free software than can be modified and distributed under the terms of the GPL and/or the [https://github.com/avar/DWTFYWWI DWTSYWWI] (Do Whatever The Shell You Want With It) license. By default, shell is reserved for bureaucrat>Special:MyLanguage/Project:Bureaucrats|bureaucrats only, but you can change   so that other deserving users can go to shell too.

$wgGoToShellCommand
Set this to whatever you want it to do; e.g. "ls -l", "", "rm -rf /incriminating_data", etc.