Claude Code Complete Installation Guide for Three Platforms

Categories: TutorialClaude Code

Claude Code Complete Installation Guide for Three Platforms

This comprehensive guide covers Claude Code installation for Windows, macOS, and Linux. Whether you’re a coding beginner or seasoned developer, you’ll complete the setup effortlessly.

🎯 Choose Your Operating System

🪟 Windows 🍎 macOS 🐧 Linux/WSL2
PowerShell + GUI Terminal + Homebrew Command Line + Package Manager

📋 Installation Overview

Regardless of platform, Claude Code installation follows the same basic workflow:

  1. Install Node.js Environment - Foundation for AI tools
  2. Install Claude Code - Global installation via npm
  3. Configure Environment Variables - Connect to relay service
  4. Verify Installation - Ensure everything works properly
  5. Start Using - Experience AI programming in your projects

🚀 Quick Start

If you already have Node.js installed, run directly:

# Install Claude Code
npm install -g @anthropic-ai/claude-code

# Set environment variables (temporary)
export ANTHROPIC_BASE_URL="https://use.codecodex.ai/api"
export ANTHROPIC_AUTH_TOKEN="your-api-key"

# Launch and use
claude

🔧 Platform-Specific Features

Windows Users

  • PowerShell Optimization: Installation steps optimized for PowerShell
  • GUI Support: Combined command line and graphical interface
  • Permission Management: Detailed administrator privileges and execution policy settings

macOS Users

  • Homebrew Integration: Uses macOS’s most popular package manager
  • System Permissions: Handle macOS security settings and permission issues
  • Terminal Optimization: Supports both zsh and bash shells

Linux Users

  • Multi-Distribution Support: Ubuntu, Debian, CentOS, Fedora, etc.
  • Package Manager Options: Official repository and system package managers
  • Permission Configuration: User permissions and dependency installation guidance

🎯 Advanced Configuration

Beyond basic Claude Code installation, we also provide:

Gemini CLI Integration

export CODE_ASSIST_ENDPOINT="https://use.codecodex.ai/gemini"
export GOOGLE_CLOUD_ACCESS_TOKEN="your-api-key"
export GOOGLE_GENAI_USE_GCA="true"

Codex Tool Support

Configure ~/.codex/config.toml file for OpenAI API compatible tools.

Environment Variable Management

  • Temporary Settings: Effective for current session
  • Permanent Settings: User-level or system-level configuration
  • Verification Methods: Ensure configuration takes effect correctly

🛠️ Common Issue Solutions

We’ve compiled detailed troubleshooting solutions for each platform:

  • Permission Errors: Administrator privileges, sudo usage, file permissions
  • Environment Variables: Config file modifications, shell reloading, verification methods
  • Dependency Issues: Missing libraries, version compatibility, package managers

💡 Usage Recommendations

For Beginners

  1. Choose recommended installation method (official download or Homebrew)
  2. Use permanent environment variable settings
  3. Check common issues solutions when encountering problems

For Developers

  1. Consider using package managers for Node.js installation
  2. Configure advanced features (Gemini CLI, Codex)
  3. Set up project-level configuration files

For Teams

  1. Standardize installation methods and configurations
  2. Share API key management strategies
  3. Establish troubleshooting documentation

🎉 Start Your AI Programming Journey

After completing installation, you can:

  • Smart Code Generation: Describe requirements, automatically generate code
  • Code Refactoring Optimization: Improve existing code structure and performance
  • Error Debugging Analysis: Quickly locate and fix issues
  • Documentation Comment Generation: Automatically generate standard code documentation

Claude Code will become your most capable programming assistant, making coding more efficient and enjoyable!


💬 Need Help?

Start exploring the infinite possibilities of AI programming! 🚀

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