Cron Detective

Cron daemon running? Check with: systemctl status cron or service cron status Server was up? Check uptime: uptime or review server monitoring logs Crontab still exists? Verify with: crontab -l Script executable? Check permissions: ls -la /path/to/script Path issues? Cron has limited PATH. Use absolute paths or set PATH in crontab Check cron logs? Review: grep CRON /var/log/syslog or /var/log/cron Script errors? Add output redirection: /path/script.sh >> /var/log/myjob.log 2>&1 Timezone correct? Cron uses system timezone. Check: timedatectl or date Resource limits? Check if disk is full, memory exhausted, or process limits reached Overlapping runs? Previous job still running? Consider using flock for locking