Cron Job Not Running? Debug Like a Pro (4-Window Method)

"My cron job isn't running." The most common cron sentence. This lesson teaches the four-window debug method — find the bug in 30 seconds, not an hour.

In this lesson, you'll learn:
✓ /var/log/syslog and journalctl -u cron — where logs hide
✓ Capturing stdout/stderr to a file (the trick)
✓ Adding a sentinel file for every run
✓ The MAILTO variable (email-on-error) — and why it usually fails

📚 Part 7 of 13 in the Cron Mastery course.
Stop guessing why cron isn't working. Start measuring. By the end you have a repeatable process for any cron bug — even ones you've never seen.

🎓 Cron Mastery is part of the Dargslan IT Mastery series.
🌐 dargslan.com

#Linux #Cron #Debugging #SysAdmin #DevOps

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