Basic Navigation

/help                     # Show help and available commands
/exit                     # Exit the REPL
/clear                    # Clear conversation history
/config                   # Open config panel
/doctor                   # Check Claude Code installation health

Basic File Operations

# Print mode (SDK) - execute and exit
claude -p "explain this function"

# Process piped content
cat logs.txt | claude -p "explain"

# Continue most recent conversation
claude -c

# Continue via SDK
claude -c -p "Check for type errors"

Session Management

# Resume session by ID
claude -r "abc123" "Finish this PR"

# Resume with flag
claude --resume abc123 "query"

# Continue session
claude --continue

Keyboard Shortcuts

Ctrl+C                    # Cancel current operation
Ctrl+D                    # Exit Claude Code
Tab                       # Auto-complete
Up/Down                   # Navigate command history

🟡 Level 2: Intermediate Commands

Configuration and model management

Model Configuration

# Switch models
claude --model sonnet                    # Use Sonnet model
claude --model opus                      # Use Opus model
claude --model claude-sonnet-4-20250514  # Use specific model version

Directory Management

# Add additional working directories
claude --add-dir ../apps ../lib

# Validate directory paths
claude --add-dir /path/to/project

Output Formatting

# Different output formats
claude -p "query" --output-format json
claude -p "query" --output-format text
claude -p "query" --output-...