Run grep warn /var/log/nginx-error.log.
grep warn /var/log/nginx-error.log
Mission 56
Error patterns
Search different logs for warning and denied patterns.
Text and logsgrepjournalctl
Lesson 56 of 360
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Text and logs · 7 minutes
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learner@clairos:/home/learner $
Unix ops lab: type a command, press Enter
Instructions
7 minutes
Click any instruction for the command details, the why, and the common mistake to avoid.
Run grep denied /var/log/auth.log.
grep denied /var/log/auth.log
Run journalctl -u nginx.
journalctl -u nginx
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Lesson support
What to notice while you play.
Find related warning and denied lines.
Search nginx-error.log and auth.log.
Triage depends on connecting clues, not reading one file in isolation.
- Only searching one log.
- Ignoring service journal context.
Reference
Commands in this lesson.
grep [-i] <text> <file>
Find literal text inside a file.
journalctl -u <service>
Read simulated service journal entries.