I've been blindly copy pasting code that contains these keywords to install programs and having migrated from Windows, I don't quite understand what they mean. Can anyone explain them and their significance with their similarities/differences?
Also, I would like to know how do you know the answer to this question? I mean, since I am learning to use Ubuntu now from barely any prior experience, how should I have know this answer? Where should I have looked for it, apart from Googling, which I tried only to find answers not satisfying/clear enough.