Command Line Interface

Execute system operations and application logic: a text-based interface (e.g., Bash, PowerShell) that processes typed commands for speed and powerful scripting.

The Command Line Interface (CLI) is the core mechanism for direct system interaction, favored by DevOps and engineers for its precision and efficiency. It utilizes a shell (e.g., Bash, Zsh, PowerShell) to parse commands and arguments, executing operations directly against the OS or an application API. This text-only environment is crucial for automation: scripts chain powerful utilities (e.g., `ls -l`, `docker run`) to manage infrastructure, deploy code, or process data at scale, a capability a Graphical User Interface (GUI) cannot match.

https://clig.dev/