The best languages to learn for linux

What are the best languages to learn for linux?

If you're talking about linux kernel dev, C and C++. Application level development could be java, c, c++, and the window manager api's like kde or gnome. qt might help. Other than that, mono supports C# on linux and all the web languages/scripts work too.

for linux system admin stuff, python/perl/bash/sh/ksh/tch scripting will help a lot. text editors like vi or emacs will help you in the long run.