Cron Monitor Skill

Manage cron jobs.

List Current Cron Jobs

crontab -l 2>/dev/null || echo "No crontab for current user"

System Cron Jobs

ls -la /etc/cron.d/ 2>/dev/null
cat /etc/crontab 2>/dev/null

Check Cron Logs

grep CRON /var/log/syslog 2>/dev/null | tail -20
journalctl -u cron --since "1 hour ago" 2>/dev/null | tail -20

Debug a Cron Job

# Test the command manually first
/path/to/script.sh

# Check PATH in cron (minimal by default)
echo "PATH=$PATH" | crontab -l | head -1

Notes

• Cron uses a minimal PATH — use full paths in scripts
• Redirect output: * * * * * /script.sh >> /var/log/script.log 2>&1
• Check file permissions on scripts