The manpage of logwatch says:
The format of the range option is: --range "date_range [period]"
Parameter date_range (and optional period) must be enclosed in quotes if it is ...
Examples:
--range today --range yesterday --range '4 hours ago for that hour' --range '-3 days' --range 'since 2 hours ago for those hours' --range 'between -10 days and -2 days' --range 'Apr 15, 2005' --range 'first Monday in May' --range 'between 4/23/2005 and 4/30/2005' --range '2005/05/03 10:24:17 for that second'
but none of those options work on my Debian Squeeze machine.
How do you use the --range option correctly?