Getting Started with Gemini CLI

Learn the basics of installation, authentication, and your first AI-powered commands with Gemini CLI.

0 of 5 completed

Prerequisites

What You'll Learn

Step 1: Installation

First, let's install Gemini CLI globally using npm. This will make the gemini command available system-wide.

Install Gemini CLI

npm install -g @google/gemini-cli

Note: You might need to use sudo on macOS/Linux if you encounter permission errors.

Verify the installation by checking the version:

Verify Installation

gemini --version

Before using Gemini CLI, you need to authenticate with your Google account. This process will open your browser and guide you through the OAuth flow.

Authenticate with Google

gemini auth login

Success! After authentication, you'll see a confirmation message with your account details.

You can check your authentication status anytime:

Check Auth Status

gemini auth status

Now let's run your first Gemini CLI command. We'll use the generate command to create some code.

Generate Code

gemini generate "Create a simple Hello World function in Python"

Expected Output:

Generated Python Code

def hello_world():
    """
    A simple function that prints Hello World
    """
    print("Hello, World!")

# Call the function
hello_world()

Let's explore some common usage patterns and commands you'll use frequently.

Start an interactive conversation with Gemini:

Start Chat Session

gemini chat

Analyze and get insights about your code files:

Analyze Code File

gemini analyze --file ./src/app.js

View available commands and options:

Show Help

gemini --help

Congratulations! You've successfully set up Gemini CLI and run your first commands. Here's what to explore next:

Advanced Commands

Learn about complex prompting and workflow automation

API Reference

Explore all available commands and options

On this page