cheat.sh — Unified Cheat Sheet Service for Developers

Introduction

cheat.sh aggregates cheat sheets from dozens of community sources into a single, curl-accessible interface. It provides concise, practical examples for programming languages, CLI tools, and UNIX commands without leaving the terminal.

What cheat.sh Does

• Serves cheat sheets for 58 programming languages and over 1000 UNIX commands
• Aggregates content from tldr-pages, Stack Overflow, Learn X in Y Minutes, and custom sheets
• Supports language-specific queries with topic paths like python/decorator
• Provides a special :learn page for quick language primers
• Offers syntax-highlighted output and stealth mode for clean text

Architecture Overview

cheat.sh is a Python-based web service backed by Redis for caching. It indexes multiple upstream cheat sheet repositories and Stack Overflow answers into a unified query interface. The server responds to simple HTTP GET requests, making curl the primary client, though editor plugins for Vim, Emacs, VS Code, and Sublime are also available.

Self-Hosting & Configuration

• Clone the repo and install dependencies with pip install -r requirements.txt
• Start the server with python bin/srv.py on port 8002 by default
• Set CHEATSH_CACHE environment variable to configure Redis-backed caching
• Configure upstream cheat sheet sources in lib/adapter/ modules
• Deploy behind Nginx or Caddy for TLS and domain routing

Key Features

• Zero-install client: works with plain curl or wget
• Unified search across multiple cheat sheet databases
• Syntax highlighting with automatic language detection
• Editor integration for Vim, Emacs, VS Code, and IntelliJ
• Self-hostable for air-gapped or private environments

Comparison with Similar Tools

• tldr-pages — community man-page summaries; cheat.sh aggregates tldr plus many other sources
• DevHints — web-based cheat sheets; cheat.sh is terminal-first and curl-friendly
• Navi — interactive CLI cheat sheet tool; cheat.sh is a server-side aggregation service
• eg — example-focused man pages; cheat.sh covers broader language and tool scope

FAQ

Q: Does cheat.sh require authentication? A: No. The public instance at cheat.sh is free and requires no API key or login.

Q: Can I add my own cheat sheets? A: Yes. Place custom sheets in the cheat.sheets/ directory or submit a pull request to the community repository.

Q: Does it work offline? A: Self-hosting with a local Redis cache enables fully offline usage after initial indexing.

Q: Which editors are supported? A: Official plugins exist for Vim, Emacs, VS Code, Sublime Text, and IntelliJ IDEA.

Sources

• https://github.com/chubin/cheat.sh
• https://cheat.sh/:intro