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Free IT Cheat Sheets

Download 4 professional quick reference guides — free PDF downloads for Linux, Docker, Git, Python, and more.

4 Cheat Sheets
2 Downloads
100% Free
All Sheets Quick Reference Beginner's Guides Intermediate Guides Advanced Guides
All DEVOPS & INFRASTRUCTURE (16) Linux (13) DATABASES (9) Programming Languages (8) Docker (8) Kubernetes (7) JavaScript (4) PostgreSQL (4) Python (4) PowerShell (3) Azure (Microsoft Azure) (3) SSH & Remote Access (3) AWS (Amazon Web Services) (3) MySQL (3) Bash / Shell (3) NETWORKING & SECURITY (3) Linux Servers (3) Automation (3) CLOUD COMPUTING (2) PROGRAMMING & DEVELOPMENT (2) TypeScript (2) PHP (2) Linux Administration (2) Java (2) Linux Security (2) Web Development (2) Linux Networking (1) Windows (1)
PostgreSQL Beginner's Guide PDF

PostgreSQL Beginner's Complete Guide

A comprehensive 6-page PostgreSQL reference covering connections, table creation, CRUD operations, JOINs, aggregation, G

0 downloads Free Download
PostgreSQL Intermediate Guide PDF

PostgreSQL Intermediate Guide

An 8-page guide to intermediate PostgreSQL. Covers complex joins, CTEs, recursive queries, window functions, JSONB opera

0 downloads Free Download
PostgreSQL Advanced Guide PDF

PostgreSQL Advanced Guide

Expert-level PostgreSQL covering declarative partitioning, streaming and logical replication, VACUUM internals and autov

0 downloads Free Download
PostgreSQL PDF

PostgreSQL Queries Cheat Sheet

Essential SQL commands for PostgreSQL. Covers database connection, CRUD operations, joins, aggregates, table management,

0 downloads Free Download

Why Use Our Cheat Sheets?

Professional quick reference guides designed for IT professionals and learners.

📄 Print-Ready PDFs

Compact 1-2 page format perfect for printing and pinning near your workstation.

🎨 Professional Design

Dark theme with orange accents, clear typography, and organized command reference layout.

📚 Linked to eBooks

Each cheat sheet links to related eBooks for deeper learning on the topic.

🔒 100% Free

All cheat sheets are free to download. No hidden costs, no premium tier.

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Frequently Asked Questions

What are Dargslan IT cheat sheets?

Dargslan IT cheat sheets are free, professionally designed PDF reference guides in four tiers: Quick Reference (1-2 pages), Beginner's Guides (3-6 pages), Intermediate Guides (5-10 pages), and Advanced Guides (8-15 pages with expert-level content, architecture patterns, and production strategies).

How many cheat sheets are available?

We currently offer 121 free cheat sheets covering topics like Linux, Docker, Kubernetes, Git, Python, PostgreSQL, PowerShell, and more across four skill levels. New cheat sheets are added regularly.

Are the cheat sheets really free?

Yes, all cheat sheets are completely free to download. We just ask for your email address so we can notify you when new cheat sheets are released.

What is the difference between the four tiers?

Quick Reference sheets are compact 1-2 page PDFs for printing. Beginner's Guides are 3-6 pages for learning from scratch. Intermediate Guides are 5-10 pages with best practices for experienced users. Advanced Guides are 8-15 pages covering expert topics, production architecture, performance tuning, and real-world strategies.

Can I print the cheat sheets?

Absolutely! All PDFs are designed to look great both on screen and when printed. Quick Reference sheets are especially good for printing and keeping near your desk.

How do I download a cheat sheet?

Click on any cheat sheet to view its details, then click the download button. Enter your email address and the PDF will be available for immediate download.