In most cases, the argument is a file path, but it can be anything you type in the terminal. Most of the time, flags are optional.Īn argument or parameter is the input we give to a command so it can run properly. Most Linux commands have a help page that we can call with the flag -h. For example, when you close a window by clicking on the “X,” there’s a command running behind that action.Ī flag is a way we can pass options to the command you run. A command line is an interface that accepts lines of text and processes them into instructions for your computer.Īny graphical user interface (GUI) is just an abstraction of command-line programs. ![]() A Linux command is a program or utility that runs on the command line.
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