The Idea As often happens, I stumbled upon an interesting video: I knew about tesla coils, but had never seen one that could play music. I needed to know how it worked. The answer: by replacing the traditional spark gap (acting as a crude switch) with a transistor, I could switch the coil on and off at a rate...

So I don’t know bash. But why do I need to learn it to, say, grab all the files in a folder and prepend some text to the beginning? Why if I want to do anything with files or text or manipulate any file into another kind of file I always have to download some other third party app or find some weird script...