Various knowledge in various areas:

• Python 2.7 (well versed) and 3.x (somewhat still learning the differences) #!/usr/bin/python2.7
• Bash (via. Linux and Cygwin) command line, and even bash scripts #!/bin/bash
• Windows command prompt (cmd.exe variant... still need to learn more, as well as actually start learning PowerShell)
• Minecraft (lots of basic, some advanced, few very advanced topics... mostly code or put-mods-together related)
• Left 4 Dead 2 (having fun with learning and making edits for myself to play with and host when I play with others for SourceMod... not for the faint-hearted to install as it disables the ability to play on Official Dedicated servers)