Day‑7 Linux Tutorial (2025): Permissions & Ownership | Beginners to Advanced | DevOps | DevSecOps

## 📘 Course Description – Day 7 (2025–2026)
Linux Beginner to Advanced Tutorial | DevOps | DevSecOps | AI & Data Engineering

Day‑7 Linux Tutorial (2025): Permissions & Ownership | Beginners to Advanced | DevOps | DevSecOps is a focused training session that explains how Linux controls access to files and directories through ownership and permission settings. It covers the basics of users, groups, and others, the meaning of read, write, and execute rights, and how these permissions are applied using both symbolic and numeric (octal) modes. The tutorial also explores real‑world scenarios where ownership alone doesn’t guarantee access, how parent directory permissions affect child directories, and practical fixes like adjusting groups or directory modes. By the end, learners understand not only the fundamentals but also advanced topics such as special permissions (setuid, setgid, sticky bit) and their importance in DevOps and DevSecOps environments for maintaining security, collaboration, and compliance.
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