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Chapter 06 · Linux & OS

Own the Terminal

The foundation every IT pro needs — shell scripting, processes, file systems, systemd, permissions and cron, step by step.

BashsystemdcronPermissionsSSHFile systems

Linux & OS Articles

All guides in this chapter

📅 2026-10-23⏱ 9 min read

Linux Server Security Hardening Guide for Beginners: Protect Your Server Step by Step

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📅 2026-07-21⏱ 12 min read

Linux Kernel Tuning and Performance: sysctl, cgroups, and Fleet-Scale Automation

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📅 2026-07-15⏱ 8 min read

Linux Commands Every Beginner Must Know in 2026

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Explore other chapters

🌐 Networking ☁️ Cloud 🔐 Security ⚙️ DevOps 🗄️ Databases 🐧 Linux 🖥️ Hardware 📋 Compliance