ratanon/claude-code

1# Quickstart - Anthropic2 3Source: https://docs.anthropic.com/en/docs/claude-code/quickstart4Last Updated: 2025-06-24T09:05:33.5235775 6---7 8Anthropic home page English Search... Search... Navigation Getting started Quickstart Welcome Developer Guide API Guide Claude Code Model Context Protocol (MCP) Resources Release Notes Documentation Developer Discord Support Getting started Overview Set up Quickstart Memory management Common workflows Build with Claude Add Claude Code to your IDE Model Context Protocol (MCP) GitHub Actions Claude Code SDK Troubleshooting Deployment Overview Amazon Bedrock Google Vertex AI Corporate proxy LLM gateway Development containers Administration Identity and Access Management Security Monitoring Costs Reference CLI reference Interactive mode Slash commands Settings Resources Data usage Legal and compliance This quickstart guide will have you using AI-powered coding assistance in just a few minutes. By the end, youll understand how to use Claude Code for common development tasks.  Before you begin Make sure you have: Installed Claude Code A terminal or command prompt open A code project to work with (or use our sample project )  Step 1: Start your first session Open your terminal in any project directory and start Claude Code: cd /path/to/your/project claude Youll see the Claude Code prompt inside a new interactive session:  Welcome to Claude Code! ... > Try "create a util logging.py that..."  Step 2: Ask your first question Lets start with understanding your codebase. Try one of these commands: > what does this project do? Claude will analyze your files and provide a summary. You can also ask more specific questions: > what technologies does this project use? > where is the main entry point? > explain the folder structure Claude Code reads your files as needed - you dont have to manually add context.  Step 3: Make your first code change Now lets make Claude Code do some actual coding. Try a simple task: > add a hello world function to the main file Claude Code will: Find the appropriate file Show you the proposed changes Ask for your approval Make the edit Claude Code always asks for permission before modifying files. You can approve individual changes or enable Accept all mode for a session.  Step 4: Use Git with Claude Code Claude Code makes Git operations conversational: > what files have I changed? > commit my changes with a descriptive message You can also prompt for more complex Git operations: > create a new branch called feature/quickstart > show me the last 5 commits > help me resolve merge conflicts  Step 5: Fix a bug or add a feature Claude is proficient at debugging and feature implementation. Describe what you want in natural language: > add input validation to the user registration form Or fix existing issues: > there's a bug where users can submit empty forms - fix it Claude Code will: Locate the relevant code Understand the context Implement a solution Run tests if available  Step 6: Test out other common workflows There are a number of ways to work with Claude: Refactor code > refactor the authentication module to use async/await instead of callbacks Write tests > write unit tests for the calculator functions Update documentation > update the README with installation instructions Code review > review my changes and suggest improvements Remember : Claude Code is your AI pair programmer. Talk to it like you would a helpful colleague - describe what you want to achieve, and it will help you get there.  Essential commands Here are the most important commands for daily use: Command What it does Example claude Start interactive mode claude claude "task" Run a one-time task claude "fix the build error" claude -p "query" Run one-off query, then exit claude -p "explain this function" claude -c Continue most recent conversation claude -c claude -r Resume a previous conversation claude -r claude commit Create a Git commit claude commit /clear Clear conversation history > /clear /help Show available commands > /help exit or Ctrl+C Exit Claude Code > exit  Pro tips for beginners Be specific with your requests Instead of: fix the bug Try: fix the login bug where users see a blank screen after entering wrong credentials Use step-by-step instructions Break complex tasks into steps: > 1. create a new API endpoint for user profiles > 2. add validation for required fields > 3. write tests for the endpoint Let Claude explore first Before making changes, let Claude understand your code: > analyze the database schema > how does error handling work in this app? Save time with shortcuts Use Tab for command completion Press  for command history Type / to see all slash commands  Whats next? Now that youve learned the basics, explore more advanced features: CLI reference Master all commands and options Configuration Customize Claude Code for your workflow Common workflows Learn advanced techniques  Getting help In Claude Code : Type /help or ask how do I Documentation : Youre here! Browse other guides Community : Join our Discord for tips and support Was this page helpful? Yes No Set up Memory management On this page Before you begin Step 1: Start your first session Step 2: Ask your first question Step 3: Make your first code change Step 4: Use Git with Claude Code Step 5: Fix a bug or add a feature Step 6: Test out other common workflows Essential commands Pro tips for beginners Whats next? Getting help9 10---11Document ID: en__docs__claude-code__quickstart