[lug] Creating date variables in bash
bthoen at gisnet.com
Tue Oct 12 11:09:04 MDT 2004
On Tue, 12 Oct 2004, Shannon Johnston wrote:
> I did it with this:
> DATE=`date '+%Y-%m-%d'`
> YESTERDAY=`date +%Y-%m-%d -d "-1 day"`
Ah. So it was in the man pages after all. Another question then. Where do
they describe the allowed formats of STRING in 'date --date=STRING'?
> On Tue, 2004-10-12 at 10:47, Bill Thoen wrote:
> > I can get today's date into a bash variable like so:
> > D=$(date +%G%m%d)
> > but how do I get the date for say, 7 days ago?
> > I tried 'man date' but didn't see an option for doing date math.
> > - Bill Thoen
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