Run crontab -l.
crontab -l
Mission 288
Incident cron failure
Connect cron schedule, service, and logs.
Troubleshootingcrontabsystemctlgrep
Lesson 288 of 360
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Troubleshooting · 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 systemctl status cron.
systemctl status cron
Run grep CRON /var/log/cron.log.
grep CRON /var/log/cron.log
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Lesson support
What to notice while you play.
Connect cron schedule, service, and logs.
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.
systemctl status <service>
Inspect simulated service status.
crontab -l
List a simulated learner crontab.