bash
node --versionNotes
Check which runtime is active in your shell, CI job, or container.
Node.js CLI
Node.js CLI cheat sheets for runtime flags, debugging, watch mode, test runner, environment variables, and production execution patterns.
Export
Copy the compact sheet, download it, or print it.
Download
`D` dense toggle · `C` copy all
Basics and Invocation
Inspect runtime, run scripts, eval code, and use stdin.
bash
node --helpNotes
Lists available flags and basic usage for the installed runtime.
bash
node --v8-optionsNotes
Useful for memory and GC tuning research.
bash
node app.jsNotes
Standard way to launch a Node program.
bash
node -e "console.log(process.version)"Notes
Good for quick checks, shell automation, and CI probes.
bash
node -p "process.platform + ' ' + process.arch"Notes
`-p` is useful in scripts where you want the value printed automatically.
bash
echo "console.log('hello from stdin')" | node -Notes
Useful in pipelines or generated scripts.
bash
node --check app.jsNotes
Helpful in CI or quick validation of generated JavaScript files.
More in Node.js CLI
Node.js CLI Recipes
Node.js CLI recipes for watch mode, built-in tests, REPL usage, shebang scripts, and practical automation patterns.
Node.js CLI Security & Permissions
Node.js CLI security cheat sheets for the permission model, network and filesystem restrictions, eval hardening, and TLS/crypto settings.
Node.js CLI Performance & Profiling
Node.js CLI performance cheat sheets for memory tuning, CPU profiling, heap analysis, coverage, and source-map-aware debugging.
Node.js CLI Environment & Config
Node.js CLI environment and config cheat sheets for NODE_OPTIONS, runtime environment variables, proxy settings, CA certificates, and launch patterns.