Command Line Arguments
Command line arguments are parameters passed to a program when it is executed from a command-line interface (CLI), such as a terminal or shell. They allow users to customize program behavior, specify input files, set configuration options, or control execution flow without modifying the source code. This concept is fundamental across operating systems and programming languages for building flexible and user-configurable applications.
Developers should learn command line arguments to create versatile CLI tools, scripts, and applications that can be easily automated, integrated into pipelines, or used in headless environments. Common use cases include specifying configuration files (e.g., `--config config.yaml`), enabling debug modes (e.g., `-v` for verbose output), or passing input data (e.g., `program input.txt`), which is essential for DevOps, system administration, and data processing tasks.