0.1: Installation

• Time to Complete: 15 minutes

Prerequisites

• Claude Pro or Max subscription (NOT free tier)
  • Sign up at claude.ai if you don’t have one
  • $20/month for Pro
• Mac (macOS 10.15+), Windows 10+, or Linux (Ubuntu 20.04+)
• 4 GB+ RAM
• Internet connection
• No coding tools required!

How to Open Your Terminal

Mac:

1. Press Cmd + Space to open Spotlight
2. Type “Terminal”
3. Press Enter

Windows:

1. Press the Windows key
2. Type “PowerShell”
3. Press Enter

You’ll see a window with a blinking cursor - this is where you type commands.

Install Claude Code

Copy the command below, paste it into your terminal, and press Enter.

Mac/Linux:

curl -fsSL https://claude.ai/install.sh | bash

Mac with Homebrew:

brew install --cask claude-code

Windows PowerShell:

irm https://claude.ai/install.ps1 | iex

After running, close and reopen your terminal.

Verify Installation

claude --version

You should see a version number. If you see “command not found”, close the terminal, reopen it, and try again.

Authenticate

1. Type: claude
2. Choose “Claude account with subscription” (NOT Anthropic Console)
3. Complete browser authentication
4. Select your preferred text style
5. You should see the Claude Code welcome screen

Troubleshooting

command not found: claude

• Close terminal completely and reopen
• Mac: Run source ~/.zshrc or source ~/.bashrc
• Windows: Restart PowerShell

Subscription required

• Verify active subscription at claude.ai
• Log out and log back in

Permission denied

• Mac: The install script handles permissions automatically
• Windows: Run PowerShell as Administrator

Run /doctor for diagnostics

Once inside Claude Code, type /doctor - it shows what’s working and what’s not.

Command Reference

Sources: Official Claude Code Setup Docs

What’s Next

0.2: Download & Start → - Download course materials and begin learning