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Cron Job Basics
Schedule tasks simply
Cron jobs run commands on schedules defined by cron expressions; good practice logs output, uses absolute paths, and monitors failures.
- cron expression
- scheduling
- logging
- alerts
- absolute paths
Write Expressions
Use minute-hour-day-month-weekday fields; test with a parser.
Run Safely
Set env, absolute paths, and limit concurrency with locks.
Monitor
Log output, alert on non-zero exits, and review regularly.