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1998-06-30
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MODIFY CRONTAB ENTRY
A crontab entry consists of six fields. Any combination of the five
time fields (minutes, hours, days, months, and/or days) define when
the command (sixth field) will execute. By default, the job will run
every hour if all the time fields are left blank.
Note: This feature is system dependent; you may not be able to use
all combinations of time settings on your system. Check your local
cron for its precise workings.
The window has the following fields:
Hostname
If you want to limit this job to specific hostnames within a pool,
enter those hostnames in this field. If you are using multiple
entries, leave a blank between each entry. You can also use the
arrow button to the right to select the available hosts from the
current pool.
User Name
This read only field specifies which user's job will be nodified. You
Description
You can use this field to briefly describe this job's purpose.
Command
Use this field to specify the cron command (and arguments) to be run
at the time established by the remaining five fields.You can use a
maximum of 256 characters to specify this command.
Minutes
Use this field to specify what point in the specified hour(s) the
job will run. Enter a whole number between 0 and 59. Or you can
specify a range by using a dash(-), e.g., 0-20. If you are using
multiple entries, leave a blank between each entry.
Hours of Day
Days of month
Months of the Year
Days of the Week
Click on the appropriate boxes in these fields to further define
when this job will run. You may select multiple values per field.
The window has the following buttons:
Add
Once you've made all the selections for the new job, click on this
button to selectively create the crontab job.
Clear Fields
Click on this button to clear the existing choices in all fields.
Close
Click on this button to discard any changes and close the window.