Cron Every 30 Minutes

Expression: */30 * * * *

How */30 Works

The */30 runs at minutes: 0 and 30 of every hour.

Common Use Cases

🔄 Periodic Sync

• */30 * * * * /scripts/sync-data.sh - Sync data every 30 minutes
• */30 * * * * /scripts/pull-updates.sh - Pull updates from external APIs

📊 Reports & Analytics

• */30 * * * * /scripts/generate-metrics.sh - Generate metrics every 30 min

🧹 Maintenance

• */30 * * * * /scripts/optimize-db.sh - Database optimization
• */30 * * * * /scripts/cleanup-temp.sh - Clean temporary files

When to Use 30 Minutes?

Every 30 minutes is ideal when:

• Real-time isn't required but hourly is too slow
• You want to balance server load with freshness
• External API rate limits prevent more frequent calls

Interval Options

• */5 * * * * - Every 5 minutes
• */10 * * * * - Every 10 minutes
• */15 * * * * - Every 15 minutes
• */30 * * * * - Every 30 minutes