How to modify a keyboard layout in Linux

New layout for my Spanish keyboard

Or: how to define a programmer-friendl(er) Spanish keyboard. …and you can add Greek, too!

NOTICE: You do not need anymore to change system files, at least in Ubuntu/Gnome: read this post on AskUbuntu!

A bit of history

There was a time when the computers all had the same keyboard — basically, the US one. You […]