Welcome to an in-depth exploration of the Linux file system! In this comprehensive guide, we'll demystify the various directories found in a typical Linux distribution, explaining their purposes and functionalities. Whether you're a seasoned sysadmin or a curious newcomer, this article will enhance your understanding of the backbone of Linux's structure and operation.

Understanding SRE metrics and how they impact your platform's availability are fundamentals of Site Reliability Engineering. How available is your website, service, or platform? What must you monitor and measure to ensure availability? How do you translate uptime into availability? This chart has numbers that every Site Reliability Engineer (SRE) should know.