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Concise, practical reference sheets designed for rapid recall in daily sysadmin, DevSecOps, and automation work.

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Available Cheatsheets

AWK Cheatsheet

Text processing, log analysis, and field manipulation with AWK

ps Cheatsheet

Process inspection and troubleshooting with ps command

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Structure

Cheatsheets follow a consistent format for rapid recall:
1

Mental Model

Quick conceptual overview of how the tool works
2

Common One-Liners

The most frequently used commands for daily operations
3

Practical Examples

Real-world sysadmin scenarios and solutions
4

Recall Tables

Condensed reference tables for quick lookup

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Usage Philosophy

These cheatsheets prioritize speed and practicality over comprehensive documentation. Each entry is designed for muscle memory and rapid problem-solving.

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Design Principles

  • Minimal and focused - Only the most useful commands
  • Real-world examples - Actual sysadmin scenarios
  • Rapid recall - Organized for quick scanning
  • Copy-paste ready - All code blocks are directly usable

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Contributing

Future cheatsheets will follow the same structure: 
cheatsheets/
├── awk-cheatsheet/
├── ps-cheatsheet/
├── <future-tool>/
└── overview.mdx
Each cheatsheet includes a “Minimal Recall Table” section for quick reference during time-sensitive operations.

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