Cron
By Will Bontrager2004-01-09
The Cron Table
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The cron table has six fields. The first five fields are schedule time fields and the sixth is the command itself:
1. The minute of the hour the command shall execute.
2. The hour the command shall execute.
3. The day of the month the command shall execute.
4. The month the command shall execute.
5. The day of the week the command shall execute.
6. The command.
All six fields are on one line. There is one space between each field. Only field 6 may contain spaces within itself.
Here is an example of what a schedule might look like:
10 3 1 1 * /usr/bin/perl /www/cgi-bin/script.cgi
Comments in the cron table, ignored by the server, are lines beginning with the # symbol.
Tutorial Pages:
» Cron
» The Cron Table
» The Five Schedule Time Fields
» Hypothetical Situations
» The Hypothetical Situations Schedules
» The Sixth Field, The Command
» On-line Documentation for cron and crontab
» A Practice Script
» Conclusion
Copyright 2004 Bontrager Connection, LLC
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