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Free IT Cheat Sheets

Download 40 professional quick reference guides — free PDF downloads for Linux, Docker, Git, Python, and more.

40 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)
Linux Beginner's Guide PDF

Linux Beginner's Complete Guide

A comprehensive 6-page reference covering everything a Linux beginner needs: file system navigation, file management, pe

0 downloads Free Download
Docker Beginner's Guide PDF

Docker Beginner's Complete Guide

A comprehensive 6-page Docker reference covering containers, images, Dockerfiles, volumes, networking, Docker Compose, a

0 downloads Free Download
DEVOPS & INFRASTRUCTURE Beginner's Guide PDF

Git Beginner's Complete Guide

A comprehensive 6-page Git reference from first commit to team collaboration. Covers setup, staging, commits, branches,

0 downloads Free Download
Kubernetes Beginner's Guide PDF

Kubernetes Beginner's Complete Guide

A comprehensive 6-page Kubernetes reference covering pods, deployments, services, scaling, ConfigMaps, Secrets, namespac

0 downloads Free Download
Python Beginner's Guide PDF

Python Beginner's Complete Guide

A comprehensive 6-page Python reference covering variables, strings, control flow, functions, lists, dictionaries, file

0 downloads Free Download
Bash / Shell Beginner's Guide PDF

Bash Scripting Beginner's Complete Guide

A comprehensive 6-page Bash scripting reference covering variables, conditionals, loops, functions, string manipulation,

0 downloads Free Download
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
NETWORKING & SECURITY Beginner's Guide PDF

Networking Beginner's Complete Guide

A comprehensive 6-page networking reference covering TCP/IP, DNS, ports, network configuration, troubleshooting, firewal

0 downloads Free Download
Automation Beginner's Guide PDF

Ansible Beginner's Complete Guide

A comprehensive 5-page Ansible reference covering inventory, ad-hoc commands, playbooks, essential modules, variables, h

0 downloads Free Download
DEVOPS & INFRASTRUCTURE Beginner's Guide PDF

Terraform Beginner's Complete Guide

A comprehensive 5-page Terraform reference covering HCL syntax, providers, resources, variables, outputs, state manageme

0 downloads Free Download
MySQL Beginner's Guide PDF

MySQL Beginner's Complete Guide

A comprehensive 5-page MySQL reference covering connections, tables, CRUD operations, JOINs, aggregation, subqueries, st

0 downloads Free Download
SSH & Remote Access Beginner's Guide PDF

SSH Beginner's Complete Guide

A comprehensive 5-page SSH reference covering connections, key generation, SSH config file, SCP, SFTP, rsync, tunneling,

0 downloads Free Download
DEVOPS & INFRASTRUCTURE Beginner's Guide PDF

Nginx Beginner's Complete Guide

A comprehensive 5-page Nginx reference covering installation, server blocks, location directives, reverse proxy, load ba

0 downloads Free Download
AWS (Amazon Web Services) Beginner's Guide PDF

AWS CLI Beginner's Complete Guide

A comprehensive 5-page AWS CLI reference covering setup, EC2 instances, security groups, S3 storage, IAM users/policies,

0 downloads Free Download
DEVOPS & INFRASTRUCTURE Beginner's Guide PDF

Regex Beginner's Complete Guide

A comprehensive 5-page regular expression reference covering characters, quantifiers, anchors, groups, lookaheads, pract

0 downloads Free Download
PowerShell Beginner's Guide PDF

PowerShell Beginner's Complete Guide

A comprehensive 5-page PowerShell reference covering objects, pipeline, file system, control flow, functions, services,

0 downloads Free Download
Linux Beginner's Guide PDF

Vim/Nano Beginner's Complete Guide

A comprehensive 5-page terminal editor reference covering Nano basics, Vim modes, navigation, editing, search/replace, v

0 downloads Free Download
Azure (Microsoft Azure) Beginner's Guide PDF

Azure CLI Beginner's Complete Guide

A comprehensive 5-page Azure CLI reference covering authentication, resource groups, virtual machines, storage, App Serv

0 downloads Free Download
Docker Beginner's Guide PDF

Docker Compose Beginner's Complete Guide

A comprehensive 5-page Docker Compose reference covering YAML structure, services, volumes, networks, health checks, res

0 downloads Free Download
Linux Beginner's Guide PDF

Linux File Permissions Beginner's Complete Guide

A comprehensive 5-page Linux permissions reference covering chmod, chown, numeric/symbolic notation, SUID/SGID/sticky bi

0 downloads Free Download
JavaScript Beginner's Guide PDF

JavaScript Beginner's Complete Guide

A 4-page beginner guide to JavaScript covering variables, types, template literals, arrays with iteration methods (map,

0 downloads Free Download
TypeScript Beginner's Guide PDF

TypeScript Beginner's Complete Guide

A 3-page beginner guide to TypeScript covering basic types, type inference, interfaces, type aliases, generics, utility

0 downloads Free Download
JavaScript Beginner's Guide PDF

Node.js Beginner's Complete Guide

A 3-page beginner guide to Node.js covering module system (ESM/CommonJS), file system operations, path module, process m

0 downloads Free Download
Java Beginner's Guide PDF

Java Beginner's Complete Guide

A 3-page beginner guide to Java covering data types, control flow, OOP (classes, inheritance, interfaces), modern featur

0 downloads Free Download
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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.