Sometimes referred to as the command screen or a text interface, the command line is a user interface that is navigated by typing commands at prompts, instead of using the mouse.
Because a command line interface requires unique commands, this interface is often more difficult to learn because of the need to memorize dozens of different commands. A text interface can be made easier to navigate using menus created with text and ASCII extended characters.
Although a text interface with menus has a lot more visual appeal than the command line, this interface is still considered a text interface and not a graphical interface.


However, a command line operating system can be a very valuable resource and should not be ignored. For example, many command line text editors have some type of interface with menus and shortcut keys that make navigating the file being edited easier. Unlike a GUI operating system, a command line only uses a keyboard to navigate by entering commands and does not utilize a mouse for navigating. For example, users who have Microsoft Windows may find trivial tasks, such as renaming 100+ files in a folder, a very difficult task.


The picture below is an example of the MS-DOS editor used to edit files while at the MS-DOS or Windows command line.
However, renaming 100+ files in a directory can be done in less than a minute with a command entered into the command line.



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