Many modern distributions have graphical user interfaces (GUI) to allow easy mouse based-navigation.With this course you can learn how to useTerminal in Ubuntu, Mac OS Terminal, Cloud Based Linux Terminal. we teach from zero. GUI (Graphical User Interface) is helpfulin many tasks, but GUIare not good for all tasks. Gradually when you learn command line you will able to do your day-to-day task or any task related to Programming. Much faster than you can do with your graphical user interface. GUI is user-friendly at the first look, but when you want to do more about program for example for knowing the details about what’s happening in background then you may want to use command line you know all the background details of program.Still, as a programmer you’ll likely be using your terminal window frequently, and you do many of the same tasks with keyboard commands.