Run journalctl -u nginx -n 2.
journalctl -u nginx -n 2
Mission 215
Journal time window
Narrow journal output before reading a whole service history.
Text and logsjournalctlgrep
Lesson 215 of 360
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Text and logs · 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 journalctl -u ssh -n 2.
journalctl -u ssh -n 2
Run journalctl -u backup -n 1.
journalctl -u backup -n 1
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Lesson support
What to notice while you play.
Narrow journal output before reading a whole service history.
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.
grep [-i] <text> <file>
Find literal text inside a file.
journalctl -u <service>
Read simulated service journal entries.