What is the difference between a command-line interface (CLI) and a graphical user interface (GUI)?

The distinction between a command-line interface (CLI) and a graphical user interface (GUI) is fundamentally rooted in their method of user interaction. A CLI operates through text-based commands, where users type specific commands into a terminal or console to perform various tasks. This method emphasizes precision and often allows for more powerful and flexible control over system functions, as users can script their commands for automation and task efficiency.

In contrast, a GUI is designed around visual elements and graphics, employing icons, buttons, and menus that users interact with using a mouse or other pointing device. This visual approach is typically more intuitive for users who may not be familiar with command syntax, making it easier for a broader audience to navigate and use the system effectively.

The other options do not accurately represent the nature of CLIs and GUIs. While both interfaces can facilitate system updates and file management, the methods of interaction—text commands versus visual elements—are what fundamentally separate the two. Additionally, CLIs are not exclusive to any specific operating system, as both Linux and Windows can utilize command-line tools and graphical interfaces.