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Free IT Cheat Sheets

Download 20 professional quick reference guides — free PDF downloads for Linux, Docker, Git, Python, and more.

20 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 Intermediate Guide PDF

Linux Intermediate Guide

An 8-page deep dive into advanced Linux system administration. Covers advanced find operations, hard/soft links, disk ma

0 downloads Free Download
Docker Intermediate Guide PDF

Docker Intermediate Guide

An 8-page guide to production Docker patterns. Covers multi-stage builds, layer caching, security hardening, custom netw

0 downloads Free Download
DEVOPS & INFRASTRUCTURE Intermediate Guide PDF

Git Intermediate Guide

An 8-page guide to professional Git workflows. Covers interactive rebase, cherry-pick, bisect for debugging, advanced st

0 downloads Free Download
Kubernetes Intermediate Guide PDF

Kubernetes Intermediate Guide

A 9-page guide to production Kubernetes. Covers deployment strategies, rolling updates, HPA autoscaling, Ingress with TL

0 downloads Free Download
Python Intermediate Guide PDF

Python Intermediate Guide

An 8-page guide to intermediate Python programming. Covers OOP patterns, decorators with arguments, generators, context

0 downloads Free Download
Bash / Shell Intermediate Guide PDF

Bash Scripting Intermediate Guide

An 8-page guide to production Bash scripting. Covers strict mode, advanced functions, trap handlers, arrays, associative

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
NETWORKING & SECURITY Intermediate Guide PDF

Networking Intermediate Guide

An 8-page guide to intermediate networking. Covers subnetting calculations, VLANs, static/dynamic routing, OSPF/BGP, VPN

0 downloads Free Download
Automation Intermediate Guide PDF

Ansible Intermediate Guide

An 8-page guide to intermediate Ansible. Covers roles, Jinja2 templates, handlers, Ansible Vault encryption, advanced lo

0 downloads Free Download
DEVOPS & INFRASTRUCTURE Intermediate Guide PDF

Terraform Intermediate Guide

An 8-page guide to intermediate Terraform. Covers module development, remote state management, workspaces, dynamic block

0 downloads Free Download
MySQL Intermediate Guide PDF

MySQL Intermediate Guide

A 7-page guide to intermediate MySQL. Covers subqueries, window functions, stored procedures, triggers, indexing strateg

0 downloads Free Download
SSH & Remote Access Intermediate Guide PDF

SSH Intermediate Guide

A 7-page guide to intermediate SSH. Covers SSH config management, key types, local/remote/dynamic tunneling, SOCKS proxy

0 downloads Free Download
Linux Servers Intermediate Guide PDF

Nginx Intermediate Guide

An 8-page guide to intermediate Nginx. Covers reverse proxy patterns, WebSocket proxy, load balancing algorithms, SSL/TL

0 downloads Free Download
AWS (Amazon Web Services) Intermediate Guide PDF

AWS CLI Intermediate Guide

An 8-page guide to intermediate AWS CLI. Covers EC2 lifecycle, security groups, S3 advanced operations, IAM management,

0 downloads Free Download
PROGRAMMING & DEVELOPMENT Intermediate Guide PDF

Regex Intermediate Guide

A 7-page guide to intermediate regex. Covers lookaheads, lookbehinds, named groups, backreferences, greedy vs lazy quant

0 downloads Free Download
PowerShell Intermediate Guide PDF

PowerShell Intermediate Guide

A 7-page guide to intermediate PowerShell. Covers advanced pipeline, custom functions with validation, error handling, r

0 downloads Free Download
Linux Intermediate Guide PDF

Vim Intermediate Guide

A 7-page guide to intermediate Vim. Covers text objects, advanced motions, macros, registers, visual block mode, search/

0 downloads Free Download
Azure (Microsoft Azure) Intermediate Guide PDF

Azure CLI Intermediate Guide

A 7-page guide to intermediate Azure CLI. Covers VM management, VNet/NSG networking, storage accounts, Key Vault, AKS cl

0 downloads Free Download
Docker Intermediate Guide PDF

Docker Compose Intermediate Guide

A 7-page guide to intermediate Docker Compose. Covers multi-service architecture, health checks, custom networks, profil

0 downloads Free Download
Linux Security Intermediate Guide PDF

Linux Permissions Intermediate Guide

A 7-page guide to intermediate Linux permissions and security. Covers SUID/SGID/sticky bit, umask, ACLs, SELinux, AppArm

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.