--- title: "Cheatsheets - Quick Reference Cards | FindUtils" description: "Search printable cheatsheets for Git, keyboard shortcuts, spreadsheets, percentages, units, and programming. Copy entries or print a reference." url: https://findutils.com/cheatsheets/ --- # Cheatsheets 41 printable quick references in 7 categories. Every sheet has its own Markdown twin with the full content. Search printable cheatsheets for Git, keyboard shortcuts, spreadsheets, percentages, units, and programming. Copy entries or print a reference. FindUtils.com is not the GNU findutils package. ## [Linux & Terminal](https://findutils.com/cheatsheets/linux/) (6) Command line, shell scripting, and system administration. - [Linux Commands](https://findutils.com/cheatsheets/linux-commands/): Essential Linux commands for file management, processes, networking, and system administration - [Bash Scripting](https://findutils.com/cheatsheets/bash-scripting/): Variables, loops, conditionals, functions, and scripting patterns for Bash shell - [Vim Editor](https://findutils.com/cheatsheets/vim-editor/): Vim modes, movement, editing, copy and paste, search, replacement, and file commands. - [SSH Commands](https://findutils.com/cheatsheets/ssh-commands/): SSH connections, key management, SCP/SFTP transfers, tunnels, and security hardening - [Cron Expressions](https://findutils.com/cheatsheets/cron-expressions/): 5-field crontab syntax, nicknames, common schedules, and systemd OnCalendar traps - [OpenSSL Certificates](https://findutils.com/cheatsheets/openssl-certificates/): Inspect PEM certs, CSRs, and keys, convert formats, verify chains, and probe live TLS ## [Git & Version Control](https://findutils.com/cheatsheets/git/) (4) Git commands, branching strategies, and workflows. - [Git History and Diffs](https://findutils.com/cheatsheets/git-history/): Inspect Git history, compare revisions, follow file changes, and read reflogs. Check the difference between log ranges and snapshot comparisons. - [Git Branches and Remotes](https://findutils.com/cheatsheets/git-branches-remotes/): Create branches, inspect remote tracking, fetch updates, and use fast-forward merges. Check shared-branch rules before publishing changes. - [Gitignore Patterns](https://findutils.com/cheatsheets/gitignore-patterns/): Check .gitignore patterns, directory scope, exceptions, and tracked-file limits. Diagnose matching rules with Git check-ignore examples. - [Git Commands](https://findutils.com/cheatsheets/git-commands/): Common Git commands for setup, commits, branches, merges, history, stashes, and remote operations. ## [Programming](https://findutils.com/cheatsheets/programming/) (10) Language syntax, methods, and common patterns. - [Barcode Formats](https://findutils.com/cheatsheets/barcode-formats/): Code 128, Code 39, EAN and UPC inputs, check digits, export settings, and print checks for barcode generation. - [JavaScript ES6+](https://findutils.com/cheatsheets/javascript-es6/): Modern JavaScript syntax: destructuring, arrow functions, promises, modules, and built-in methods - [Python Essentials](https://findutils.com/cheatsheets/python-essentials/): Python syntax, data structures, comprehensions, built-in functions, and common patterns - [Regular Expressions](https://findutils.com/cheatsheets/regex/): JavaScript-style regex syntax, character classes, quantifiers, groups, assertions, flags, and example shape patterns. - [SQL Reference](https://findutils.com/cheatsheets/sql-reference/): Common SQL clauses for queries, joins, aggregation, data changes, tables, and indexes. Check the database dialect. - [TypeScript Essentials](https://findutils.com/cheatsheets/typescript-essentials/): Types, interfaces, generics, utility types, type guards, and advanced TypeScript patterns - [NPM Commands](https://findutils.com/cheatsheets/npm-commands/): Package management: install, update, publish, scripts, audit, and configuration - [Redis Commands](https://findutils.com/cheatsheets/redis-commands/): Strings, hashes, lists, sets, sorted sets, pub/sub, streams, and transactions - [MySQL Reference](https://findutils.com/cheatsheets/mysql-reference/): MySQL queries, joins, indexes, user management, and database administration - [jq Commands](https://findutils.com/cheatsheets/jq-commands/): Pretty-print, select, map, and transform JSON on the command line ## [Web Development](https://findutils.com/cheatsheets/web/) (6) HTML, CSS, frameworks, and web standards. - [React Hooks](https://findutils.com/cheatsheets/react-hooks/): useState, useEffect, useRef, useMemo, React 19 hooks, and custom hook patterns - [CSS Flexbox](https://findutils.com/cheatsheets/css-flexbox/): Flex container and item properties, alignment, ordering, and common layout patterns - [CSS Grid](https://findutils.com/cheatsheets/css-grid/): Grid container and item properties, template areas, auto-placement, and responsive grids - [HTTP Status Codes](https://findutils.com/cheatsheets/http-status-codes/): Common HTTP status codes and headers for requests, redirects, authentication, caching, and server errors. - [cURL HTTP](https://findutils.com/cheatsheets/curl-http/): GET, POST JSON, headers, auth, redirects, TLS, and useful script flags - [JWT Reference](https://findutils.com/cheatsheets/jwt-reference/): Signed JWT claims, algorithms, verification checks, and the distinction between JWS and JWE. ## [DevOps & Cloud](https://findutils.com/cheatsheets/devops/) (6) Docker, Kubernetes, CI/CD, and infrastructure. - [Docker Commands](https://findutils.com/cheatsheets/docker-commands/): Docker CLI, container management, images, volumes, networks, and Docker Compose - [Kubernetes Commands](https://findutils.com/cheatsheets/kubernetes-commands/): kubectl essentials: pods, deployments, services, secrets, scaling, debugging, and RBAC - [Apache HTTP Server](https://findutils.com/cheatsheets/apache-server/): Virtual hosts, modules, SSL, .htaccess, reverse proxy, and performance tuning - [Nginx Server](https://findutils.com/cheatsheets/nginx-server/): Server blocks, reverse proxy, SSL, load balancing, caching, and rate limiting - [AWS CLI](https://findutils.com/cheatsheets/aws-cli/): S3, EC2, IAM, Lambda, ECS, CloudFormation, and essential AWS CLI commands - [Terraform Commands](https://findutils.com/cheatsheets/terraform-commands/): Infrastructure as Code: init, plan, apply, state management, workspaces, and modules ## [Student & Academic](https://findutils.com/cheatsheets/student/) (3) Study tools, writing, and academic references. - [Percentages and Ratios](https://findutils.com/cheatsheets/percentages-ratios/): Calculate percentage shares, increases, discounts, and ratios. Use worked examples to distinguish percentage points from relative percentage changes. - [Everyday Unit Conversions](https://findutils.com/cheatsheets/everyday-unit-conversions/): Convert length, area, volume, mass, time, and temperature. Use exact metric and US customary factors with clear unit definitions and examples. - [Markdown Syntax](https://findutils.com/cheatsheets/markdown-syntax/): Headings, formatting, links, images, code blocks, tables, and GitHub-flavored markdown ## [Shortcuts & Productivity](https://findutils.com/cheatsheets/shortcuts/) (6) Keyboard shortcuts, editor tips, and workflow hacks. - [Spreadsheet Formulas](https://findutils.com/cheatsheets/spreadsheet-formulas/): Use basic Excel and Google Sheets formulas for totals, conditions, text, percentages, and rounding. Check references and locale separators. - [Windows 11 Keyboard Shortcuts](https://findutils.com/cheatsheets/windows-shortcuts/): Find Windows 11 shortcuts for text, windows, File Explorer, screenshots, and virtual desktops. Check key names and application differences. - [Mac Keyboard Shortcuts](https://findutils.com/cheatsheets/mac-shortcuts/): Find Mac shortcuts for text, applications, Finder, screenshots, and system tools. Check Command, Option, Control, and Shift key differences. - [Chrome Browser Shortcuts](https://findutils.com/cheatsheets/browser-shortcuts/): Find Chrome tab, navigation, search, and page shortcuts. Use separate Windows, Linux, and Mac key references with links to official documentation. - [Everyday File Formats](https://findutils.com/cheatsheets/everyday-file-formats/): Compare document, spreadsheet, image, archive, audio, and video formats. Check conversion limits and choose a format for sharing or editing. - [VS Code Shortcuts](https://findutils.com/cheatsheets/vscode-shortcuts/): VS Code keyboard shortcuts for editing, navigation, search, terminals, debugging, and panel layout.