SEO

#1 (**permalink**) 01-04-2008, 08:46 PM

Is there a restriction to the number of commands you can string
together or total number of characters in a cron entry.

For example:

27 22 * * * (. /usr/local/inst/inst.cron -i 1 -q -f >>
/home/exceed/instcron.out; /exe_cprd1/bin/IIPprprg01.4ge >> /home/exce
ed/purge_prod.out 2&>1)

One of my application developers insists upon using this. When I
suggested we just put all of this in a shell script and call that from
CRON (which works just fine).

I just want to be able to give them an answer, any help would be
great.

Thanks

#2 (**permalink**) 01-04-2008, 08:46 PM

Recommendation... establish a policy that will help you manage the system
most effectively. If you feel that everything should be called from a script
instead of having snippets of code every where on your system... (i.e. in
your cron entries), then so be it. This question is more a matter of system
management than functionality. There is more than one way to skin a cat. But
if you do it different every time, you'll never perfect your method.

Albert

"William Prendergast" <bprendy@hotmail.com> wrote in message
news:bb9447b9.0311060832.3d59c12e@posting.google.c om...
> Is there a restriction to the number of commands you can string
> together or total number of characters in a cron entry.
>
> For example:
>
> 27 22 * * * (. /usr/local/inst/inst.cron -i 1 -q -f >>
> /home/exceed/instcron.out; /exe_cprd1/bin/IIPprprg01.4ge >> /home/exce
> ed/purge_prod.out 2&>1)
>
> One of my application developers insists upon using this. When I
> suggested we just put all of this in a shell script and call that from
> CRON (which works just fine).
>
> I just want to be able to give them an answer, any help would be
> great.
>
> Thanks

#3 (**permalink**) 01-04-2008, 08:46 PM

William Prendergast wrote:
> Is there a restriction to the number of commands you can string
> together or total number of characters in a cron entry.
>
> For example:
>
> 27 22 * * * (. /usr/local/inst/inst.cron -i 1 -q -f >>
> /home/exceed/instcron.out; /exe_cprd1/bin/IIPprprg01.4ge >> /home/exce
> ed/purge_prod.out 2&>1)
>
> One of my application developers insists upon using this. When I
> suggested we just put all of this in a shell script and call that from
> CRON (which works just fine).

AFAIK 8k. But it could be less. I have had problems on an older
AIX with lines more than 1k long.

--
Thomas

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Limitation on CRON entries