Shell Programming and Scripting

I have an issue regarding searching for old dates.

At the moment I search a field within a file for the last 3 days from the system date:

using today as 25/02/2010

Code:

DD=$(expr `date +%d` - 1)
DD1=$(expr `date +%d` - 2)
DD2=$(expr `date +%d` - 3)
MTH=`date +"%m"`
YR=`date +"%Y"`
DATE="$DD/$MTH/$YR"
DATE1="$DD1/$MTH/$YR"
DATE2="$DD2/$MTH/$YR"

this will get me records that have a field:

Code:

24/02/2010
23/02/2010
22/02/2010

I run this everyday how can can i get the last 3 days if it is between months:

the date is 01/03/2010

How can i get the following records with:

Code:

28/02/2010
27/02/2010
26/02/2010

any help would be appreciated

Read this. Answer has given some hours ago.

sorted it did the following:

Code:

VAR=`TZ=BST+HH date +%d/%m/%Y`