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Install the OpenAI Codex CLI on Mac, Windows or Linux

This story is from 2026-10-06. It is preserved in the archive; the latest stories are on the live feed.

The Codex CLI is OpenAI's coding agent for the terminal. It reads your repository, edits files, runs commands and explains what it did, all from one prompt. Installing it takes one command; using it well takes a few choices most guides skip: how to sign in, how much the agent may do without asking,…

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  1. 2026-10-06 00:10 · DEV Community — AI
    Install the OpenAI Codex CLI on Mac, Windows or Linux

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