How can I su to user and then sudo command without asking for password?

Question

I want to run sudo as a user after changing to them from root without asking for their password or changing any settings.

Step 1: change to user, from root

server:~#su joseph

Step 2: run sudo on command as that user

joseph@server:/$ sudo vim test.txt

Here I get the prompt for password.

[sudo] password for joseph:

I want to be able to bypass this prompt without having to change the users sudoers settings.

Is this possible?

Answer 1

yes, that is possible. provided that user josephaccount is allowed to use sudo command, add NOPASSWD tag on /etc/sudoers file.

it may look like this:

joseph ALL = NOPASSWD: /bin/vim

see man 5 sudoers for more info