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http://blogs.techrepublic.com.com

Periodic schedulers come in many shapes and sizes but one constant is cron, the scheduling daemon that will run programs and scripts at arbitrary times or intervals. A number of different cron implementations exist: although vixie-cron may be the most popular, there are other similar programs such as dcron, fcron, anacron, and others. Each cron implementation typically adheres to the same standards of defining cron jobs by using a configuration file called a crontab with a certain layout:

[min] [hour] [day of month] [month] [day of week] [script or command]

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Created by Ubuntu87 16 years 6 weeks ago – Made popular 16 years 6 weeks ago
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