Module 18: Linux and the Command Line

MODULE 18 · 2 LESSONS

Operate a server safely with files, processes, permissions, logs and repeatable scripts.

Project checkpoint: Prepare and diagnose a production-like Linux host.

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Module 18 learning loopA four-step visual showing paths, pipes, permissions, environment variables.Module 18 learning loop1Paths2Pipes3Permissions4EnvironmentVariables

Module 18 learning loop

  1. 1Paths
  2. 2Pipes
  3. 3Permissions
  4. 4Environment Variables
Module 18 learning loop: a practical sequence used in this lesson.

What this module changes in your work

  • Navigate and automate without weakening ownership or permissions.
  • Inspect resource use, follow logs and understand service lifecycle before restarting anything.
  • Use paths, pipes, permissions in one coherent implementation.
  • Complete this evidence-backed checkpoint: Prepare and diagnose a production-like Linux host.

Lessons

PROJECT CHECKPOINT

Turn linux and the command line into evidence

Prepare and diagnose a production-like Linux host.

  • Write acceptance criteria for paths before implementation.
  • Keep the change small enough that a reviewer can connect it to the intended behavior.
  • Use the most direct check available for pipes and save the result.
  • Record one decision you would keep and one you would revisit after feedback.

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