Cron Expression
*/20 * * * *
Cron Expression: Cron Every 20 Minutes
Learn how to create a cron expression for 'cron every 20 minutes'. Runs every 20 minutes with our free cron generator tool.
Expression Breakdown
*/20
Minute(0-59)
*
Hour(0-23)
*
Day(1-31)
*
Month(1-12)
*
Weekday(0-6)
| Field | Value | Meaning |
|---|---|---|
| Minute | */20 | Every 20 minutes |
| Hour | * | Any hour |
| Day of Month | * | Any day |
| Month | * | Any month |
| Day of Week | * | Any day of the week |
This cron expression represents: cron every 20 minutes
Cron Expression
*/20 * * * *
What This Expression Does
Runs every 20 minutes
Use Cases
This cron schedule is commonly used for:
- Automated tasks
- System maintenance
- Monitoring scripts
- Data processing
How to Use
- Copy the cron expression above
- Open your crontab with
crontab -e - Add a new line with:
*/20 * * * * /path/to/your/script.sh - Save and exit
Alternative Formats
-
With logging:
*/20 * * * * /path/to/script.sh >> /var/log/cron.log 2>&1 -
With email notification:
*/20 * * * * /path/to/script.sh || mail -s "Cron job failed" admin@example.com