claude-code-bash-patterns

# Claude Code Bash Patterns **Status**: Production Ready ✅ | **Last Verified**: 2025-11-18 --- ## Quick Start ### Basic Command ```bash ls -la ``` ### Command Chaining ```bash bun install && bun run build && bun test ``` ### Hooks Create `.claude-hook-pretooluse.sh`: ```bash #!/usr/bin/env bash # PreToolUse hook - runs before every Bash command echo "Running: $1" ``` **Load `references/hooks-examples.md` for complete hook patterns.** --- ## The Five Core Patterns ### 1. Sequential Operations (&&) **Use when**: Each command depends on previous success ```bash git add . && git commit -m "message" && git push ``` **Why**: Stops chain if any command fails --- ### 2. Parallel Operations (Multiple tool calls) **Use when**: Commands are independent ``` Message with multiple Bash tool calls in parallel ``` **Load `references/cli-tool-integration.md` for parallel patterns.** --- ### 3. Session Persistence **Use when**: Need to maintain state across commands ```bash # Set environment variable export API_KEY="sk-..." # Use in later commands (same session) curl -H "Authorization: Bearer $API_KEY" api.example.com ``` --- ### 4. Background Processes **Use when**: Long-running tasks ```bash npm run dev & # Get PID with $! ``` --- ### 5. Hooks for Automation **Use when**: Need pre/post command logic **Load `references/hooks-examples.md` for all hook types.** --- ## Critical Rules ### Always Do ✅ 1. **Use && for sequential dependencies** (not semicolons...