DevToolbox Store

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Bestseller

Git Power User Cheatsheet

50+ commands, workflows & tricks

Everything from undo & recovery to interactive rebase mastery, stash techniques, search forensics, and power .gitconfig settings.

Undo & recovery patterns
Interactive rebase mastery
Search & forensics commands
Time-saving aliases & config
Printable PDF format

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New

Docker & Compose Cheatsheet

Production-ready commands & templates

Container lifecycle, image management, networking, Compose essentials, production templates, debugging tricks, and security best practices.

Container lifecycle commands
Multi-stage build patterns
Production Compose templates
Security hardening guide
Debugging & performance tips

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Popular

Prompt Engineering Mega-Pack

100+ battle-tested prompts for devs

Ready-to-use prompt templates for code generation, debugging, security audits, documentation, system design, CI/CD, and more. Works with GPT-4, Claude, Gemini.

Code generation templates
Debugging & analysis prompts
Security audit frameworks
System design prompts
Meta-prompting techniques

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Regex Mastery Cheatsheet

Pattern matching made practical

Core syntax, lookaheads/lookbehinds, common validation patterns (email, URL, IP), data extraction recipes, and language-specific usage for Python, JS, and Go.

Complete regex syntax reference
Lookahead & lookbehind patterns
Real-world validation recipes
Python, JS, Go examples
Performance optimization tips

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New

Linux CLI Essential Reference

150+ commands organized by task

File management, text processing (grep, sed, awk), networking, process management, disk/memory, security, package management, and shell productivity tricks.

150+ essential commands
grep, sed, awk deep dives
Networking & security tools
Shell productivity tricks
Organized by real tasks

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VS Code Productivity Guide

Stop clicking, start flying

Essential keyboard shortcuts, must-have extensions, workspace settings, multi-cursor mastery, integrated terminal workflows, debugging configurations, and Git integration.

Essential keyboard shortcuts
Must-have extensions list
Multi-cursor mastery
Debugging configurations
Covers Python, JS, Go, Rust

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Shell Scripting Cookbook

50+ battle-tested Bash recipes

Strict mode, argument parsing, string ops, file processing, API wrappers, parallel execution, error handling with retry/backoff, cron patterns, and debugging.

50+ copy-paste recipes
Strict mode & error handling
Parallel execution patterns
API wrappers & health checks
Cron & scheduling recipes

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API Design Patterns Guide

REST, GraphQL & production patterns

Resource naming, HTTP status codes, pagination (offset vs cursor), auth (JWT, OAuth 2.0), rate limiting, versioning, error handling, idempotency, and GraphQL essentials.

REST & GraphQL patterns
Auth: JWT, OAuth 2.0, API keys
Rate limiting algorithms
Stripe-style versioning
Security checklist

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New

SQL Query Optimization Guide

PostgreSQL & MySQL performance

EXPLAIN ANALYZE mastery, indexing strategies (composite, partial, covering), N+1 query fixes, aggregation optimization, join algorithms, and PostgreSQL-specific tools.

EXPLAIN ANALYZE deep dive
Indexing strategies that work
N+1 query elimination
Join algorithm selection
Quick-wins checklist

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New

Python One-Liners Reference

100+ concise snippets

List/dict comprehensions, string magic, file I/O one-liners, functional patterns, itertools, command-line tricks, datetime handling, and debugging shortcuts.

100+ ready-to-use snippets
Comprehension & functional patterns
CLI one-liners (python3 -c)
File & path operations
Debugging & profiling tips

📖 Free Preview — What's Inside

From: Git Power User Cheatsheet

Undo last commit (keep changes)
$ git reset --soft HEAD~1

Recover deleted branch
$ git reflog | grep 'branch-name'
$ git checkout -b branch-name HEAD@{n}

Auto-resolve repeated merge conflicts
[rerere]
  enabled = true

From: Docker Cheatsheet

Multi-stage build (slim images)
FROM node:20 AS builder
RUN npm ci && npm run build

FROM node:20-slim
COPY --from=builder /app/dist ./dist
CMD ["node", "dist/index.js"]

Health check in Compose
healthcheck:
  test: curl -f http://localhost:3000/health
  interval: 30s

From: Prompt Engineering Pack

📌 Security Audit Prompt

Audit this code for vulnerabilities:
```{language}
{code}
```
Check for:
- Injection (SQL, XSS, command)
- Auth/authz issues
- OWASP Top 10 violations

For each finding:
- Severity: Critical/High/Medium/Low
- Attack scenario
- Fix with code example