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Phase 2 · Linux & Command Line

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Linux Fundamentals

Part of the DevOps Roadmap.

Summary

The dominant operating system for servers and cloud infrastructure — understanding its architecture, distributions, and basic philosophy ('everything is a file') is foundational for nearly everything else in DevOps.

How to Learn This

  • 1Set up a Linux environment (a VM, WSL, or a cloud free-tier instance) to practice hands-on.
  • 2Learn the difference between major distributions (Ubuntu, CentOS/RHEL, Debian) at a high level.
  • 3Practice basic commands daily until navigating a terminal feels natural, not intimidating.

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The 3 Ways of DevOps (Flow, Feedback, Learning)

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File System Navigation

More topics in Linux & Command Line

File System NavigationFile Permissions & OwnershipProcess ManagementPackage Managers (apt, yum)Shell Scripting Basics (Bash)Text Processing (grep, sed, awk)System Logs & journalctlCron Jobs & SchedulingSSH & Remote Accesssystemd & Service Management
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