Dear list, please apologize my maybe silly question, but I never understood, when variables (and strings) are set in different marks and what it does mean.
I found "foo", `foo` and 'foo' at different tools. Maybe someone can enlighten me, when I should use which ones. Sorry to ask here, but I have no one in my surroundings, whom I could ask (except me, they all are using Windows only). Thanks Hans
