Creating user-defined tasks

Date and time of the User-defined task has to be entered in year-extended cron format (a string containing 6 fields each separated by a space):

minute(0-59) hour(0-23) day of month(1-31) month(1-12) year(1970-2099) day of week(0-7)(Sunday = 0 or 7)


30 6 22 3 2012 4

Special characters supported in cron expressions:

asterisk (*) - expression will match for all values of the field; e.g. asterisk in the 3rd field (day of month) means every day

hyphen (-) - defines ranges; e.g. 3-9

comma (,) - separates items of a list; e.g. 1,3,7,8

slash (/) - defines increments of ranges; e.g. 3-28/5 in the 3rd field (day of month) means 3rd day of the month and then every 5 days.

Day names (Monday-Sunday) and month names (January-December) are not supported.


Executing commands

If you define both day of month and day of week, command will be executed only when both fields match.