Creating Custom System Commands in Linux
Feb 15 · 2 min read · Introduction In this post, we’ll learn how to create custom system commands in Linux and use them like native terminal commands, with the help of a practical example in which we’ll build a command called gpush that combines git add, git commit, and g...
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Debugging Linux Backup script
Feb 13 · 9 min read · Scenario: A critical backup cron job has silently stopped working 3 days ago. The backup script is located at /opt/backup/backup.sh and should create daily backups in /var/backups/daily/ , but no new backups have been created recently. Looking at the...
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Linux quick workspace setup | One command-line install
Feb 10 · 2 min read · ✔ Updates Kali✔ Installs Git✔ Sets your Git name + email✔ Installs VS Code✔ Installs Antigravity✔ Verifies Node Create file nan setup.sh Write a script. # =============================== # Kali Dev Environment Setup # Author: Rohan Satkar # ====...
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sysup: um comando para atualizar todas as suas máquinas em qualquer distro
Feb 9 · 5 min read · Quem mantém mais de uma distribuição Linux sabe a dor: dnf update aqui, pacman -Syu ali, apt upgrade acolá. Multiplica isso por cinco máquinas — dois laptops com Omarchy e EndeavourOS (Arch), outro com Ubuntu 25.04, um desktop com Fedora 43 e um home...
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Automating System Monitoring with Bash Scripts and Cron Jobs
Dec 31, 2025 · 4 min read · Linux Automation Made Easy with Bash Scripts and Cron Jobs A Beginner-Friendly Linux Automation Project (AltSchool Cloud Engineering) Introduction As a beginner in Linux system administration, Cloud computing, or DevOps, learning how to automate ro...
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Autobashn NexHunt CTF Writeup: Bypassing Bash Jails via Eval Injection
Dec 13, 2025 · 4 min read · Challenge Description Category: Bash Jail EscapeAuthor: duty1g The Autobashn has taken on almost legendary mystique. The reality is a little different than the legend. The myth of no commands limits is countered by the fact that jails are a fact of l...
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set of real-time DevOps shell scripting scenarios
Dec 11, 2025 · 9 min read · 1. Find and kill all zombie processes 🔹 What is a zombie process? A process that is dead but still listed because its parent didn’t clean it. Status = Z 🔹 Real-world use Too many zombies = system issues → DevOps must clean parent processes. �...
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