käsurealiirised

Käsurealiirised, also known as command-line interfaces (CLIs), are a text-based way of interacting with a computer. Instead of using a mouse and graphical icons, users type commands into a terminal or console window. These commands are then interpreted by the operating system or a specific application, which executes the requested action.

The power of CLIs lies in their efficiency and flexibility. Complex tasks can often be accomplished with a single command or a series of commands, and these sequences can be saved as scripts for repeated use. CLIs are also highly customizable, allowing users to tailor their environment and workflows. They are indispensable for system administration, software development, and advanced computing tasks.

Common commands include those for navigating directories (e.g., `cd`), listing files (`ls` or `dir`), creating directories (`mkdir`), and executing programs. Many operating systems, such as Linux, macOS, and Windows, provide their own CLIs. While graphical user interfaces (GUIs) are more intuitive for many everyday tasks, CLIs remain a critical tool for power users and professionals who need greater control and automation capabilities.