I just started with using the (Windows) command line tool for working with npm. And I end up quite often on StackOverflow when I'm stuck with some error and the solution is often to add [something] to the Path Environment variable.
But what exactly is the path environment variable? How do I add variables to it? Are these variables added permanently? How can I read/print this Path Environment variable. I suppose it's some kind of an array.
Basicly can you give me a heads up about what the PATH environment variable is, what it does, why it exists and how to (ab)use it.
