Cheatsheets are one of the most under-rated learning tools in the DevOps toolbox. When you are three hours into debugging a broken pipeline, you don’t want a 400-page book - you want the one page that reminds you which flag does what. This page collects quick references I keep within arm’s reach.

Cloud Computing

A concise summary of the core cloud service models (IaaS, PaaS, SaaS), deployment patterns, and the shared responsibility model is a good starting point for anyone new to cloud infrastructure.

Official provider references

Linux and Shell

When you move between machines and distributions all day, keeping Linux fundamentals handy saves real time.

  • tldr pages - a community-driven collection of simplified, example-heavy man pages
  • explainshell - paste any shell command and get a plain-English breakdown of every flag
  • Bash scripting cheatsheet - a dense overview of arrays, conditionals, and expansion syntax

Kubernetes

Kubernetes has a large surface area, and most day-to-day work is covered by a small set of kubectl commands.

Git