Day -2 : Essential Linux File System Knowledge for DevOps Engineers.

As a DevOps engineer, understanding the Linux file system is non‑negotiable. It’s the foundation of where you store code, configure services, check logs, and deploy applications. In this post, I’ll walk you through the most important directories, their purposes, and how you should use them in daily DevOps work. 🏠 User Workspaces vs System Areas User workspace (/home/): This is where you should keep your project code, scripts, and personal files. For example, if your username is ubuntu, your workspace is /home/ubuntu. System areas (/etc, /var, /usr, etc.): These directories are reserved for configurations, logs, binaries, and deployments. You’ll often need sudo to work here because they affect the whole system. 📂 Key Directories Every DevOps Engineer Must Know /home/ Purpose: User’s personal workspace DevOps Usage: Store project code, scripts, configs Example Commands: cd ~ cd /home/ubuntu /root Purpose: Root user’s home directory DevOps Usage: Reserved for admin tasks, not coding Exa