What is Crontab Syntax?
Cron schedules recurring tasks on Unix systems using a five-field expression: minute, hour, day of month, month and day of week. Its syntax with wildcards and steps is compact but easy to forget.
This reference explains each field and its values, along with the common wildcards (*, */5, ranges and lists) and common examples like "every 15 minutes" or "at 9:00 Monday to Friday". Use it to write or interpret any cron expression with confidence.
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