Command Line Utilities are tools that allow users to interact with their computer's operating system through text-based commands instead of a graphical interface. These utilities can perform a variety of tasks, such as file management, system monitoring, and network configuration. They are often used by developers and system administrators for their efficiency and speed. Common examples of command line utilities include ls for listing files, cp for copying files, and mkdir for creating directories. These tools are available in various operating systems, including Linux, macOS, and Windows, and can be powerful for automating repetitive tasks and managing system resources.