Not able to login to the instance..

Hi all,

In our setup db2v9.7 with fixpack 4

I am in a big trouble, When i tried to login to instance over my dev box.

su db2inst1
bash-3.2$ db2 list db directory
bash: db2: command not found
bash-3.2$ db2ilist
bash: db2ilist: command not found
bash-3.2$

I don't know why i am getting this error? could you please help over this?

:eek:

Thanks,
laxman...