Blog Articles: Devops

• devops kayd Mar 10, 2025 18 min read

  ~/Linux ls Command: The Complete Guide with History, Examples, and Tricks (Read full article)

  The definitive guide to the Linux ls command covering its Unix origins, core options, task-based examples, quirky tricks, and a handy cheat sheet. Everything …

• devops kayd Feb 25, 2025 4 min read

  ~/Jenkins UserRemoteConfig: The Ultimate Guide for Dynamic Git Integration (Read full article)

  Master Jenkins UserRemoteConfig for dynamic Git repository management. Includes Groovy examples, security best practices, and real-world use cases from 20+ …

• devops kayd Feb 05, 2025 30 min read

  ~/Task Automation: From Cron and Make to a Go Task Runner (Read full article)

  Learn Linux task automation from scratch. Start with cron, at, make, and systemd timers, then build a Go task runner that schedules, executes, and monitors …

• devops development kayd Jan 28, 2025 27 min read

  ~/Deployment Automation: From SSH Scripts to a Go Deploy Tool (Read full article)

  Learn deployment automation from scratch. Start with SSH, rsync, and shell scripts, then build a Go tool that deploys applications with health checks, …

• devops kayd Jan 28, 2025 11 min read

  ~/Jenkinsfile with envsubst: Simplifying CI/CD Pipeline Configuration (Read full article)

  Master Jenkinsfile with envsubst to simplify your CI/CD pipelines. Learn how environment variable substitution can improve your Jenkins configuration management …

• devops development kayd Jan 28, 2025 11 min read

  ~/Sed One-Liners: 30 Commands from 2TB/Month Log Analysis (Read full article)

  Learn sed the way production incidents teach it. These 30 one-liners come from real debugging sessions processing 2TB/month of logs. Start with simple …

• devops development kayd Dec 28, 2024 11 min read

  ~/How to Replace Text in Multiple Files with Sed: A Step-by-Step Guide (Read full article)

  Master the art of replacing text across multiple files with sed. This step-by-step guide covers everything from basic substitutions to advanced pattern …

• devops security kayd Dec 28, 2024 17 min read

  ~/Security Considerations When Using envsubst: Protecting Your CI/CD Pipeline (Read full article)

  Discover essential security considerations when using envsubst in your CI/CD pipelines. Learn how to protect sensitive data, prevent injection attacks, and …

• devops system-design kayd Aug 28, 2024 26 min read

  ~/Bash for SRE: Google's Reliability in Shell Scripts (Read full article)

  Discover how to implement Google's Site Reliability Engineering (SRE) principles using Bash scripts. Learn proven SRE practices from Google's renowned books …

• devops development kayd Apr 30, 2024 10 min read

  ~/Filename Extraction: From basename to a 500K File/Day Pipeline (Read full article)

  Learn filename extraction the way production log pipelines actually work. Start with basename, hit the spaces-in-filenames bug, fix it, then benchmark against …