Cron Expression Generator
Visually configure scheduled tasks and generate standard cron expressions automatically.
Select Execution Mode
root@nas:~# crontab -e
Cron Expression
$
30 * * * *
Runs at minute 30 of every hour
Common NAS Scheduled Task Scenarios
Daily Backup at 3 AM
0 3 * * *
Automatically back up important data to a remote NAS or cloud.
Sync Every 15 Minutes
*/15 * * * *
Sync photos and documents to the backup directory in near real-time.
Weekly Full Backup on Sunday
0 4 * * 0
Run a full system image backup on weekends.
Daily Log Cleanup
0 2 * * *
Automatically delete system logs older than 30 days.
Disk Monitoring Every 6 Hours
0 */6 * * *
Check disk health and generate SMART reports.
Archive on the 1st of Every Month
0 1 1 * *
Compress last month data and move it to an archive directory.
Morning Photo Backup Every Day
30 5 * * *
Sync phone photos to the NAS album directory.
Late-Night Cache Cleanup Every Monday
0 0 * * 1
Clear Docker container logs and temporary files.
Work-Hours Monitoring
*/5 9-18 * * 1-5
Check service status every 5 minutes on weekdays during business hours.