I am not able to perform this below step . how to forefully save the file as i d . . .

Girish:
I am not able to perform this below step . how to forefully save the file as i do not have the permssion SSH into node01 host and reset password for user jim
passwd jim
On node01 host, open /etc/sudoers file using any editor like vi and add an entry for user jim and forcefully save the file.
jim ALL=(ALL:ALL) ALL

Dean H:
:x! or :wq!

Mohamed Ayman:
Try
sudo su nano /etc/sudoers