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Command-line Interface Brief Introduction & CLI vs GUI

Updated on Friday, January 10, 2025

iBoysoft author Sherry Song

Written by

Sherry Song
Professional tech editor

Approved by

Jessica Shee

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Summary: In our daily use, you must try many command tools, so what is a command-line interface? Today, walk with iBoysoft, we will give you a better understanding of it and know the differences between CLI and GUI.

What is Command-line Interface

 

A Command-line interface, shorted as CLI, is a text-based tool used to interact with your laptops and computers. Unlike graphical user interfaces (GUI), where users navigate through icons and menus, CLI relies on typed commands to execute tasks.

Widely used by developers, CLI offers direct control over systems, making it an essential tool in software development, system management, and automation.

Key characteristics of the Command-line interface

Let's look at the main features of the Command-line interface first:

  • Text-based interaction: Users type commands into a terminal or shell. 
  • Precision and control: The command-line interface allows users to execute tasks with exact parameters, offering greater flexibility. 
  • Minimal resource usage: CLI consumes less system memory and processing power.

How does a Command-line interface work? What are the examples?

A Command-line interface functions by interpreting and executing user-inputted commands through a shell or command processor.

  • Input: Users type commands, often accompanied by options or arguments. 
  • Processing: The shell interprets the command and performs the specified action. 
  • Output: Results are displayed as text in the terminal window.
    how does command-line interface work

Here we list some common types and examples of CLI:

  • Windows CLI tools: Command Prompt, PowerShell. 
  • Unix/Linux Shells: Bash, Zsh, Fish. 
  • Mac: TerminalXcode
  • Cross-platform tools: Git, Docker CLI.

Have you got all of these? Please share our post.

 

Advantages and disadvantages of Command-line interface

There is a table about the advantages and disadvantages of the Command-line interface:

ProsCons
Efficiency: Faster for experienced usersSteep learning process: Requires memorization of commands and syntax
Automation: Scripting capabilities save time for repetitive tasksError-prone: Sometimes may happen unintended actions 
Advanced access: Direct access to system-level settings and functionsLimited visual feedback: No graphical representations or previews

What are the differences between CLI and GUI?

 CLIGUI
User interfaceRelies on typed commands; minimalistic and text-basedFeatures icons, windows, and menus for interaction 
Difficult levelDemands technical knowledge and familiarity with commandsIntuitive and beginner-friendly
Efficiency and performanceFaster for experienced users; uses fewer system resourcesSlower but easier for most tasks due to visual navigation
Uses casesIdeal for system administration, software development, and automationBetter suited for general users and tasks requiring visual interaction

Now you can know the results of CLI vs GUI, share this helpful table.

 

Conclusion

The Command-Line Interface (CLI) remains a useful tool for advanced computing tasks, offering us excellent efficiency, control, and flexibility.

While it may have a steeper learning curve compared to graphical interfaces, its ability to execute complex operations and automate workflows makes it important for IT professionals and developers.