Command Line Interface (CLI) is a mechanism for interacting with a computer operating system or System software by typing commands to perform specific tasks. This contrasts with the use of a mouse pointer with a graphical user interface (GUI) to click on options, or menus on a Text user interface (TUI) to select options. This method of instructing a computer to perform a given task is referred to as "entering" a command: the system waits for the user to conclude the submitting of the text comm… (More on Command-line)