Help with Crontab

[Drew Tomlinson]

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, 
> are
>     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.
>
> HTH,
>
> 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.

Thanks,

Drew

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