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  Top 200 Linux Commands for DevOps: The Complete Reference Guide 📅 Published: June 2026 ⏱️ Estimated Reading Time: 30 minutes 🏷️ Tags: Linux Commands, DevOps, Command Line, System Administration, Shell Scripting Introduction: Why These Commands Matter Linux is the operating system of the cloud. Over 90% of servers run Linux. Every DevOps engineer must be comfortable at the command line. You don't need to memorize every command, but you need to know what's possible and how to find what you need. This guide organizes 200 essential Linux commands by category. Each command includes a practical example showing exactly how to use it. Part 1: File System Navigation (15 commands) Command Purpose Example pwd Print working directory pwd → /home/user ls List files and directories ls -la (detailed list) cd Change directory cd /var/log tree Display directory tree tree -L 2 (2 levels deep) mkdir Create directory mkdir -p dir1/dir2 (create parents) rmdir Remove empty directory rmdir em...