#Cheatsheet.
26 posts filed under this topic.
jq Cheat Sheet: Filter, Transform, and Query JSON from the Terminal
Complete jq reference — basic filters, pipes, array/object operations, conditionals, string interpolation, select, map, reduce, and real DevOps workflows.
Docker Compose Cheat Sheet: Services, Volumes, Networks & Production Patterns
Complete Docker Compose reference — service definitions, volumes, networks, environment variables, health checks, overrides, and production-ready compose file templates.
VS Code Shortcuts for Developers: The Complete Cheatsheet
Master VS Code keyboard shortcuts — editing, navigation, debugging, Git integration, and custom keybindings. Work faster with the editor you already use.
Markdown Cheat Sheet: Syntax, Tables, and Extended Features
Complete Markdown reference — headings, lists, links, images, tables, code blocks, task lists, footnotes, and GitHub Flavored Markdown (GFM) extensions.
Nginx Cheat Sheet: Config, Routing, SSL & Performance
Complete Nginx reference — server blocks, location matching, proxy_pass, SSL/TLS, gzip, rate limiting, headers, redirects, and a production-ready config template.
Qwen Coder Cheatsheet (2026 Edition): Running Local Agents
Master Alibaba's open-weights Qwen Coder models. Essential commands for Ollama integration, local execution, and private agentic workflows.
tmux Cheat Sheet: Sessions, Panes, Windows & Config
Complete tmux reference — prefix key, sessions, windows, panes, copy mode, key bindings, plugins, and a starter .tmux.conf for 2026.
OpenAI Codex & Agents Cheatsheet (2026 Edition)
Master the OpenAI Agents SDK and Codex API. Essential code snippets for function calling, strict JSON schemas, and reliable code generation.
SQL Cheat Sheet: Queries, Joins, Aggregates & More
Complete SQL reference — SELECT syntax, JOINs, GROUP BY, subqueries, window functions, CTEs, transactions, constraints, data types, and common patterns for any relational database.
Gemini CLI & Code Assist Cheatsheet (2026 Edition)
Master Google's Gemini CLI. Essential commands for multi-modal prompts, Google Cloud integration, and context window management.
Claude Code CLI Cheatsheet (2026 Edition)
Master Anthropic's terminal-native agent. Essential commands, context flags, and workflow tricks for the Claude Code CLI.
Git Cheat Sheet: Every Command You Actually Need
Complete Git reference with copy-paste commands for setup, staging, branching, merging, rebasing, stashing, undoing mistakes, remotes, and log inspection.
Vim Cheat Sheet: Modes, Navigation, Editing & Config
Complete Vim reference covering modes, movement, editing commands, search and replace, visual mode, split panes, macros, text objects, and a starter .vimrc.
SSH & GPG Cheat Sheet: Keys, Tunnels & Signed Commits
Complete SSH and GPG reference — key generation, ssh-agent, config file aliases, port forwarding, database tunneling, GPG signing, and signed git commits.
TypeScript Cheat Sheet: Types, Generics & Utility Types
Complete TypeScript reference — primitive types, interfaces, generics, utility types like Partial, Pick and Omit, type guards, as const, mapped types, and tsconfig options.
PostgreSQL Cheat Sheet: SQL, Indexes, EXPLAIN & psql
Complete PostgreSQL reference — psql commands, CRUD queries, joins, indexes, EXPLAIN ANALYZE, CTEs, window functions, JSONB operators, and admin queries.
Regex Cheat Sheet: Patterns, Groups & Real Examples
Complete regular expressions reference — anchors, character classes, quantifiers, named groups, lookaheads, lookbehinds, and real-world patterns for email, URL, and passwords.
Linux & Bash Cheat Sheet: Commands Every Dev Needs
Complete Linux and Bash reference — file operations, permissions, processes, grep, find, networking, pipes, cron jobs, SSH, and shell scripting.
OpenAI API Cheat Sheet: GPT-4o, Tools & Assistants
Complete OpenAI reference — GPT-4o and o-series models, chat completions, function calling, structured output, Assistants API, embeddings, DALL-E 3, and Whisper.
Gemini API Cheat Sheet: 2.5 Pro, Vision & Grounding
Complete Google Gemini reference — Gemini 2.5 Pro and Flash models, generateContent, streaming, vision, JSON output, function calling, Search grounding, and Gemini CLI.
Tailwind CSS Cheat Sheet: Every Class You Actually Use
Complete Tailwind CSS v4 reference covering layout, flexbox, grid, spacing, typography, colors, borders, shadows, responsive prefixes, and dark mode — all in one place.
curl Cheat Sheet: API Testing, Auth & File Upload
Complete curl reference — GET and POST requests, headers, authentication, file upload, response inspection, timing breakdown, webhook testing, and scripting patterns.
Docker Cheat Sheet: Images, Containers, Compose & More
Complete Docker reference — pulling images, running containers, volumes, networks, exec, logs, Docker Compose commands, Dockerfile tips, and disk cleanup.
Claude API Cheat Sheet: SDK, CLI, MCP & Prompting
Complete Claude reference — Anthropic API, model IDs, Messages API params, Claude Code CLI commands, MCP setup, tool use, prompt caching, and Batch API.
Kubernetes Cheat Sheet: Every kubectl Command You Actually Need
Complete Kubernetes reference with copy-paste kubectl commands for pods, deployments, services, namespaces, config, scaling, logs, exec, and troubleshooting.
Python Cheat Sheet: Every Syntax You Actually Need
Complete Python reference covering data types, strings, lists, dicts, loops, functions, classes, file I/O, exceptions, comprehensions, and common built-ins — all in one place.