Complete Tutorial on OpenAI Codex CLI: Installation, Authentication, and First Code Operations
OpenAI released Codex CLI in early 2025—a tool that lets you write code, edit files, and run commands directly in your terminal using AI. Unlike ChatGPT on the web, Codex CLI’s core strength is directly manipulating your local filesystem, so AI actually gets work done instead of just handing you snippets to paste. This guide covers the complete setup from installation to your first task, taking about 10 minutes. ...