[Addison West]

The purpose of command lines is to provide a direct and efficient way for users to interact with their computer’s operating system. Unlike graphical user interfaces (GUIs), which rely on visual elements like buttons and icons, command lines allow users to execute commands by typing text. This method can be incredibly powerful for those who master it, as it offers a level of control and precision that GUIs often can’t match.

Additionally, command lines are invaluable for viewing file contents without needing to open a separate application. Commands such as cat, less, and tail allow users to read files directly in the terminal. System information is another area where command lines excel. Commands like top provide real-time system performance data, df shows disk usage, and uname gives system details.

For network-related tasks, command lines are indispensable. Commands like ping check the connectivity to other devices, ifconfig displays network interface configurations, and netstat provides information on network connections and routing tables. Overall, mastering command lines can significantly enhance your ability to manage and troubleshoot your computer efficiently.