Claude Code 5-Minute Quickstart Guide

Whether you’re a seasoned developer or a complete beginner, this guide will get you up and running with Claude Code in just 5 minutes.

What is Claude Code?

Claude Code is Anthropic’s official AI coding assistant with several key features:

CLI Interface: Works in your terminal, not tied to any specific editor
Project-Level Understanding: Understands your entire codebase, not just single files
Natural Language: Describe what you want in plain English (or other languages), and it does it

Comparison with Other Tools

Tool	Type	Best For
Claude Code	CLI	Terminal lovers, maximum control, customization
Cursor	IDE	GUI preference, ready-to-use, visual editing
GitHub Copilot	Plugin	Line-level completion, lightweight

Choose Claude Code if you prefer working in the terminal and want more control over AI behavior.

Installation

System Requirements

macOS 10.15+, Ubuntu 20.04+/Debian 10+, or Windows 10+
Windows requires WSL, WSL 2, or Git for Windows

Install Methods (Choose One)

Option 1: Official Install Script (Recommended)

# macOS / Linux / WSL
curl -fsSL https://claude.ai/install.sh | bash

# Windows PowerShell
irm https://claude.ai/install.ps1 | iex

Option 2: Homebrew (macOS)

brew install --cask claude-code

Option 3: npm (Requires Node.js 18+)

npm install -g @anthropic-ai/claude-code

⚠️ Warning: Do NOT use sudo npm install -g as this can cause permission issues.

Verify Installation

claude --version

If you see a version number, you’re good to go! Run claude doctor if you encounter any issues.

First Use

Step 1: Launch Claude Code

Navigate to your project folder and run:

cd /your/project/path
claude

First-time users will be prompted to log in:

Anthropic Account (recommended): Login via browser
API Key: Enter your API key if you have one

Step 3: Start Chatting

Once logged in, you can start chatting with Claude!

Try:

What does this project do?

Show me the project structure

Claude will analyze your project and respond.

Basic Usage Examples

Reading and Understanding Code

Explain what src/index.js does

What are the main features of this project?

Writing Code

Write a function to validate email format

Add a date formatting utility in src/utils/

Modifying Code

Add error handling to the login function

Refactor UserService to extract duplicate code

Debugging

Find the bug in this code

Why is this API returning a 500 error?

FAQ

Q: Do I need to know programming?

No! But it helps.

Claude Code can:

Help complete beginners build projects from scratch
Help experienced developers work faster

However, having basic programming concepts will help you understand what Claude is doing.

Q: Is it free?

No, there are several payment options:

Claude Pro/Max Subscription: Monthly fee, simplest option
API Key: Pay-per-use, good for heavy users
Enterprise: For teams

Beginners should start with a subscription to avoid worrying about API costs.

Check Anthropic’s pricing page for details.

Q: How is it different from ChatGPT?

The biggest difference is Claude Code can directly manipulate your files:

ChatGPT: Gives you code to copy-paste
Claude Code: Directly writes to files, runs commands

This dramatically improves development efficiency.

Q: Is it secure?

Your code is sent to Anthropic’s servers for processing
Anthropic doesn’t use your code to train models
For sensitive code, consider enterprise plans

Next Steps

Congratulations on getting started! Here’s what to do next:

Join the Community: Claude World Taiwan Discord for questions
Attend Cowork: Weekly online co-working sessions
Learn Director Mode: Make Claude more effective with Director Mode
Explore CLAUDE.md: Learn how to configure project rules

Quick Command Reference

Command	Description
`claude`	Launch Claude Code
`claude --help`	View help
`claude --version`	Check version
`/help`	View available commands in chat
`/clear`	Clear conversation history
`Ctrl+C`	Interrupt current operation

Questions? Ask in the Discord #help channel!