CLI是用于命令行界面的单词形式。 CLI 允许用户在终端或控制台窗口中写入关联度极高的书面命令以与操作系统交互。 CLI 是一个平台或媒介，用户可以通过编写命令来回答可见提示并从系统获得响应，因为用户必须被迫使用命令或命令序列来执行任务。 CLI 适用于昂贵的计算，只要输入的准确性是优先事项。
GUI代表图形用户界面。 GUI 允许用户使用图形与操作系统交互。在图形用户界面中，提供了诸如：窗口、滚动条、按钮、向导、绘画图片、替代图标等菜单。直观、易于查找并减少心理特征负担。在 GUI 中，信息以任何形式显示或呈现给用户，例如：纯文本、视频、图像等。
让我们看看 GUI 和 CLI 之间的区别：
| S.NO | CLI | GUI |
|---|---|---|
| 1. | CLI is difficult to use. | Whereas it is easy to use. |
| 2. | It consumes low memory. | While consumes more memory. |
| 3. | In CLI we can obtain high precision. | While in it, low precision is obtained. |
| 4. | CLI is faster than GUI. | The speed of GUI is slower than CLI. |
| 5. | CLI operating system needs only keyboard. | While GUI operating system need both mouse and keyboard. |
| 6. | CLI’s appearance can not be modified or changed. | While it’s appearance can be modified or changed. |
| 7. | In CLI, input is entered only at command prompt. | While in GUI, input can be entered anywhere on the screen. |
| 8. | In CLI, the information is shown or presented to the user in plain text and files. | While in GUI, the information is shown or presented to the user in any form such as: plain text, videos, images, etc. |
| 9. | In CLI, there are no menus provided. | While in GUI, menus are provided. |
| 10. | There are no graphics in CLI. | While in GUI, graphics are used. |
| 11. | CLI do not use any pointing devices. | While it uses pointing devices for selecting and choosing items. |
| 12. | In CLI, spelling mistakes and typing errors are not avoided. | Whereas in GUI, spelling mistakes and typing errors are avoided. |