The command-line interface (CLI) is a powerful tool for interacting with a computer's operating system and performing various tasks. While traditionally associated with Unix-based systems, such as Linux, the command-line is also available on Apple's macOS, providing Apple users with a versatile and efficient way to manage their systems.

The CLI on macOS is called Terminal, and it allows users to execute commands, run scripts, and automate tasks using a text-based interface. While the graphical user interface (GUI) is the primary way most users interact with their Macs, the command-line offers additional capabilities and can be particularly useful for system administrators, developers, and power users.

Examples:

1. Listing files and directories: To list the contents of a directory, use the "ls" command. For example, to list the files and folders in the current directory, open Terminal and type:

   ls

2. Navigating directories: Use the "cd" command to change directories. For example, to navigate to the "Documents" folder, type:

   cd Documents

3. Creating and deleting files: To create a new file, use the "touch" command followed by the file name. For example, to create a file named "example.txt" in the current directory, type:

   touch example.txt

   To delete a file, use the "rm" command followed by the file name. For example, to delete the "example.txt" file, type:

   rm example.txt

4. Running scripts: macOS supports various scripting languages, such as Bash, Python, and Ruby. To run a script, simply type the name of the script file in Terminal. For example, if you have a Python script named "script.py," navigate to its directory using the "cd" command and run it with:

   python script.py