#!/bin/ksh

month=`date | cut -c5-8`
year=`date | cut -c24-28`

echo "$month"
echo "$year"

--- This gives me output as Feb and 2009
but now I want to substract the 1 month from the current script and want output as

Jan 2009.


Please note I have searched a lot on forum and found option -v with date but it doesn't work wd on my mc.

Please help...!!!