[ale] cron entry that runs the 2nd saturday of every month

[Geoffrey Myers]

Lightner, Jeff wrote:
> But the OP wanted 2nd Saturday only.  The +%u just tells you it is
> Saturday - not which Saturday.

I am the op.  Using the combination of the day of the week and the day 
of the month you can calculate whether its the 2nd Saturday of the month 
or not.

> 
> I had tested for it being Saturday in my 2008 script but if the cron
> job only runs on Saturday it isn't really necessary.   (My test was
> to prevent someone from just moving the cron job without
> understanding its purpose.)
> 
> -----Original Message----- From: ale-bounces at ale.org
> [mailto:ale-bounces at ale.org] On Behalf Of Geoffrey Myers Sent:
> Friday, August 26, 2011 3:39 PM To: Atlanta Linux Enthusiasts 
> Subject: Re: [ale] cron entry that runs the 2nd saturday of every
> month
> 
> Lightner, Jeff wrote:
>> When I had to do this back in 2008 on HP-UX I worked out a script 
>> that relied on the cal (calendar) command.
>> 
>> The following command line will give you the 2nd Saturday of the 
>> month:
>> 
>> cal |cut -c19-20 |grep '[0-9]'|head -2 |tail -1
>> 
>> The following command will give you today's day of month: date +%d
> 
> Doing something similar only relying on date alone:
> 
> date +%d date +%u
> 
>> You put your script to compare day of month with the output of the 
>> cal line and run the desired command if they match.   Then your
>> cron entry runs EVERY Saturday and the script determines whether to
>> run the commands you want based on whether it is the 2nd Saturday.
>> 
>> There may be easier ways to do this on Linux but I figured I'd send
>>  you this at least as a basis for thought.
>> 
>> 
>> 
>> 
>> 
>> -----Original Message----- From: ale-bounces at ale.org 
>> [mailto:ale-bounces at ale.org] On Behalf Of Geoffrey Myers Sent: 
>> Friday, August 26, 2011 2:26 PM To: Atlanta Linux Enthusiasts 
>> Subject: [ale] cron entry that runs the 2nd saturday of every month
>> 
>> 
>> Is it possible?
>> 
>> -- Until later, Geoffrey
>> 
>> "I predict future happiness for America if they can prevent the 
>> government from wasting the labors of the people under the pretense
>>  of taking care of them." - Thomas Jefferson 
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> 


-- 
Until later, Geoffrey

"I predict future happiness for America if they can prevent
the government from wasting the labors of the people under
the pretense of taking care of them."
- Thomas Jefferson