Re: bash date math

[Hal Burgiss <hal foobox net>]

On Thu, Jul 31, 2003 at 09:45:55AM -0500, rick henderson wrote:
> In a bash script, I need to know the previous day.
> 
> if 03012003 then 02282003
> if 05012003 then 04302003
> if 08012003 then 07312003
> 
> using date, I can get todays date.  But I need date math.

$ date -d "-1 day"
Wed Jul 30 10:48:46 EDT 2003

???

-- 
Hal Burgiss