CLI

Introduction When you open a terminal window and type git status, you are interacting with a Command‑Line Interface (CLI). When you launch htop and watch a live, scrollable table of processes, you are using a Text‑User Interface (TUI). Both live inside the same character‑based environment, yet they offer dramatically different experiences, development workflows, and trade‑offs. In the era of graphical desktops, web browsers, and native mobile apps, it is easy to overlook the relevance of text‑based interfaces. Yet they remain indispensable for system administrators, developers, DevOps engineers, and power users who need speed, scriptability, and low‑overhead interaction. Understanding when to build a CLI versus a TUI—and how to do it well—can make the difference between a tool that feels like a natural extension of the shell and one that feels clunky or redundant. ...