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gemini-cli/docs/get-started/index.md
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# Get started with Gemini CLI
Welcome to Gemini CLI! This guide will help you install, configure, and start
using the Gemini CLI to enhance your workflow right from your terminal.
## Quickstart: Install, authenticate, configure, and use Gemini CLI
Gemini CLI brings the power of advanced language models directly to your command
line interface. As an AI-powered assistant, Gemini CLI can help you with a
variety of tasks, from understanding and generating code to reviewing and
editing documents.
## Install
The standard method to install and run Gemini CLI uses `npm`:
```bash
npm install -g @google/gemini-cli
```
Once Gemini CLI is installed, run Gemini CLI from your command line:
```bash
gemini
```
For more installation options, see [Gemini CLI Installation](./installation.md).
## Authenticate
To begin using Gemini CLI, you must authenticate with a Google service. In most
cases, you can log in with your existing Google account:
1. Run Gemini CLI after installation:
```bash
gemini
```
2. When asked "How would you like to authenticate for this project?" select **1.
Login with Google**.
3. Select your Google account.
4. Click on **Sign in**.
Certain account types may require you to configure a Google Cloud project. For
more information, including other authentication methods, see
[Gemini CLI Authentication Setup](./authentication.md).
## Configure
Gemini CLI offers several ways to configure its behavior, including environment
variables, command-line arguments, and settings files.
To explore your configuration options, see
[Gemini CLI Configuration](./configuration.md).
## Use
Once installed and authenticated, you can start using Gemini CLI by issuing
commands and prompts in your terminal. Ask it to generate code, explain files,
and more.
To explore the power of Gemini CLI, see [Gemini CLI examples](./examples.md).
## What's next?
- Find out more about [Gemini CLI's tools](../tools/index.md).
- Review [Gemini CLI's commands](../cli/commands.md).
- Learn how to [get started with Gemini 3](./gemini-3.md).