abzhaw Cron Scheduling
Cron Expression Syntax
┌───── minute (0-59)
│ ┌───── hour (0-23)
│ │ ┌───── day of month (1-31)
│ │ │ ┌───── month (1-12)
│ │ │ │ ┌───── day of week (0-6, 0=Sunday)
│ │ │ │ │
* * * * *
Common Expressions
*/15 * * * * Every 15 minutes
0 * * * * Every hour on the hour
0 7 * * * Daily at 7:00 AM
0 7 * * 1 Every Monday at 7:00 AM
0 */6 * * * Every 6 hours
0 0 * * * Daily at midnight
*/5 * * * * Every 5 minutes
PM2 Cron Jobs
// ecosystem.config.js
{
name: 'security-scanner',
script: './security-agent/scripts/daily-report.sh',
cron_restart: '0 7 * * *', // 7 AM daily
autorestart: false, // don't restart on normal exit
watch: false,
}
LaunchAgent Interval (for non-cron scheduling)
<!-- Run every 6 hours (21600 seconds) -->
<key>StartInterval</key>
<integer>21600</integer>
<key>RunAtLoad</key>
<false/>
Julia's Agent Schedule
| Agent | Schedule | Method |
|---|---|---|
| Health Checker | Every 15 min | PM2 cron |
| Task Manager | Every 6h | PM2 cron |
| Security Sentinel | Daily 07:00 | PM2 cron |
| ADHD Agent | Every 6h | LaunchAgent StartInterval |
| Startup | At login | LaunchAgent RunAtLoad |