Cron Every Minute

Understanding the Expression

The cron expression * * * * * breaks down as follows:

Field	Value	Meaning
Minute	*	Every minute
Hour	*	Every hour
Day of month	*	Every day of the month
Month	*	Every month
Day of week	*	Every day of the week

Example Usage

Basic crontab entry

* * * * * /path/to/your/script.sh

With output logging

* * * * * /path/to/script.sh >> /var/log/script.log 2>&1

With monitoring

* * * * * /path/to/script.sh && curl -fsS https://cronsignal.io/ping/YOUR_CHECK_ID

Common Use Cases for Every Minute

• Real-time monitoring: Check system health and service availability
• Queue processing: Process background job queues frequently
• Cache warming: Keep caches fresh with regular updates
• Metrics collection: Gather application and infrastructure metrics