I'm working on a script in which I need to change the user, i have sudo access, i tried something like below but without success.
echo $passwd | sudo -S su - oracle
I even tried installed ssshpass but no success with that either. Is that even possible or do I need to install something else to make this work?
Any idea
If you will run your script with root account, you can just
message="The cake is a lie"
su username -c 'echo $message'
If you will run your script with another user you have two ways to do that,
1) Configuring pam like bellow so when you run su user2 -c 'command' logged with user1, linux will not ask for password.
Add the following lines right below the pam_rootok.so line in your /etc/pam.d/su:
auth [success=ignore default=1] pam_succeed_if.so user = user2
auth sufficient pam_succeed_if.so use_uid user = user1
The first line makes sure the target user is user2. If it is, the next line will take control and succeed authorization if the calling user is user1.
If the target user is something else, the second line will be ignored and the usual authentication steps will be performed.
2) Write your script using expect as here
