Why Do Command Lines Still Exist ?
GUI (graphical user interface) is easy to use and goodlooking. But CLI (command line interface) is faster and easier to automate.
Advantages of Command Line over Graphics Graphics are fancy but lack clarity and prone to errors and crashes and uses alot of resources (RAM, CPU and GPU). Here are some advantages.
Lightweight Text Interface If you accomplish a task like converting mp4 to mp3 on command line using ffmpeg, it will be faster than using any other GUI program such as Format Factory (for Windows OS).