anacron and cron and laptop usage

ben darby ben at
Tue Jan 16 23:30:22 UTC 2007

* Georg Sauthoff wrote:
> On 2007-01-15, Bill Marcum <marcumbill at> wrote:
> Hi,
> > You can change 7.30 to whatever time is convenient for you. You might 
> sure - my point is just: no fixed time suites everyone - but a
> distribution should provide defaults that make sense to as many
> people as possible.
> > even set the BIOS to wake up at that time. It shouldn't hurt to run 
> > anacron more than once per day.  There is probably some simple way to 
> Yes, it doesn't hurt - but I don't like that 'polling' approach.
> > make anacron run on resume, perhaps by a script in /etc/acpi/resume.d.  
> > Note that the cron.daily tasks tend to take a lot of cpu time.
> Or one could use a cron daemon, where you are able to specify execution
> times like '7.30h or first time after that, but only once a day'. If the
> daemon uses sleep(3) this behaviour should be trivial to implement.

this already exists anacron and what it was specifically designed for,
have you read 'man anacron'?

ben darby
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