Run systemctl list-units.
systemctl list-units
Mission 235
Unit dependency reading
Read service definitions and list units together.
Server operationssystemctlcat
Lesson 235 of 360
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Server operations · 8 minutes
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learner@clairos:/home/learner $
Unix ops lab: type a command, press Enter
Instructions
8 minutes
Click any instruction for the command details, the why, and the common mistake to avoid.
Run cat /etc/systemd/system/cron.service.
cat /etc/systemd/system/cron.service
Run systemctl status cron.
systemctl status cron
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Lesson support
What to notice while you play.
Read service definitions and list units together.
Run the commands in order and compare the outputs.
Junior operators build confidence by gathering evidence before changing systems.
- Skipping the inspection step.
- Assuming one command tells the whole story.
Reference
Commands in this lesson.
cat <file>
Print text file contents.
systemctl status <service>
Inspect simulated service status.