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System

Every command you run, every service that starts, every script you execute — it all becomes a process. Understanding how Linux tracks and manages running programs is the entry point to everything in system administration.

  • Processes

    What processes are, how to find them with ps and top, how to send signals, and the parent-child relationships that govern how Linux cleans up after itself.

What's Next

Ready to automate what you've learned? Head to Bash Scripting — the series that takes you from running commands to writing scripts that run them for you.