Cron job Every quarter hour
*/15 * * * *
minute
hour
day (month)
month
day (week)
Every 15 minutes
Field breakdown
| Field | Value | Meaning |
|---|---|---|
| minute | */15 | every 15 minutes |
| hour | * | any value |
| day (month) | * | any value |
| month | * | any value |
| day (week) | * | any value |
Crontab line
*/15 * * * * /path/to/script.shThe expression */15 * * * * schedules a cron job to run every quarter hour. This schedule belongs to the "Hour" category and is frequently used for periodic maintenance tasks, report generation, or batch processing that runs several times throughout the day.