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Learn how to install and set up [OpenAI Codex CLI](https://help.openai.com/en/articles/11096431-openai-codex-cli-getting-started?utm_source=chatgpt.com) directly inside your terminal step by step. In this beginner-friendly tutorial, I’ll show you how to turn your command line into a powerful AI coding assistant using ChatGPT-powered Codex CLI on Windows, Mac, and Linux. Whether you're a developer, programmer, student, or AI enthusiast, this guide will help you quickly install Codex CLI, connect OpenAI, and start using AI directly from your terminal for coding, debugging, automation, and more. 🔥 In This Video: • How to install Codex CLI • Terminal setup for Windows/Mac/Linux • npm install command explained • Connect OpenAI API • Use AI coding assistant in terminal • Beginner-friendly setup tutorial • Real terminal examples and commands 💻 Command Used: ```bash npm install -g @openai/codex ``` 📌 Official OpenAI Codex CLI Guide: [OpenAI Help Center – Codex CLI](https://help.openai.com/en/articles/11096431-openai-codex-cli-getting-started?utm_source=chatgpt.com) 🚀 If this tutorial helped you, make sure to: 👍 Like the video 💬 Comment your questions 🔔 Subscribe for more AI & coding tutorials #OpenAI #CodexCLI #ChatGPT #AIcoding #Terminal #Programming #DeveloperTools #OpenAICodex #CodingAssistant #AItools #CLI #TechTutorial #npm #SoftwareDevelopment