Quick Reference

Cheat Sheets & Reference Guides

4 interactive quick-reference guides. Filter within any sheet and copy commands with a single click.

Docker Cheat Sheet

Essential Docker commands for building images, running containers, using Compose, and cleaning up your system.

The most-used Git commands for everyday version control, from staging and branching to undoing mistakes.

A quick reference to HTTP response status codes — what each one means and when servers send it.

Everyday Linux/Unix shell commands for navigating, managing files, permissions, processes, searching and networking.