Date Calculation

Hi experts,

Can you please help me in calculating the future date using unix shell scripting..

for example

lets say todays date is 29-sep-2008

i wanna calculate the date after 365 days...

hence the date must be 29-sep-2009..

Quick response is appreciable.

thanks in advance..

subhendu

do you have date -d option??
otherwise go through this thread this might help you..
http://www.unix.com/unix-dummies-questions-answers/4870-days-elapsed-between-2-dates.html\#post16559

i am not able to find the logic of that script. can you please help me out???