[PLUG] Possible Causes of Cron Inconsistencies

[Joe Pruett]

>   Today's results suggest it's a lot more complex. This morning, my INBOX
> had the report mailed after the 00:02am run, but not the report for a
> scheduled run at 04:40am. But, when I manually invoked the shell script from
> the command line about 10:15am, it ran, too.
>
>   That's why I wrote it's such a perplexing situation. There appears to be
> no rhyme or reason to predict when it will work properly and when it won't.
> Annoying.

a lot of those scripts don't produce output at all (no email) if there is 
nothing to report.  could it be that between your 0002 run and 0440 that 
nothing of interest has happened, so you don't get any email?