Help with Crontab
drew at mykitchentable.net
Fri Dec 7 10:55:50 PST 2007
On 12/7/2007 10:49 AM Kevin Kinsey wrote:
> Drew Tomlinson wrote:
>> I'm trying to use cron to run a script on the first Sunday of every
>> month at 0930. I used this entry in the crontab:
>> # Run 1st Sunday at 0930 - Fulls
>> 30 9 1-7 * 7 /usr/local/scripts/backup_bootstrap.sh
>> Yet this script just ran on Thursday, December 6 at 0930. Why? I
>> just added it to cron so I don't know if it will run on any other days.
> See crontab(5), which says:
> Note: The day of a command's execution can be specified by two fields --
> day of month, and day of week. If both fields are restricted (ie,
> not *), the command will be run when either field matches the current
> time. For example, ``30 4 1,15 * 5'' would cause a command to be
> run at
> 4:30 am on the 1st and 15th of each month, plus every Friday.
> Kevin Kinsey
Thank you for the reply. Now I see the light. :) So I suppose there
is no way to schedule as I wish using cron. I suspect I'll have to
modify my script to do the date checking and only execute the "meat" if
it's the right date.
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