Manual:Minify.php

Details
Minify.php file is a maint-scripts>Special:MyLanguage/Manual:Maintenance scripts|maintenance script that minifies a file or set of files.

Usage
On windows operating system open cmd.exe

type cd c:\

cd c:\your-mediawiki-folder\maintenance\

If PHP is already in your environment path

type php minify.php your-input-file-names