It should be something like this:
Code:
%kobol ALL=(root:root) NOPASSWD: /usr/local/bin/test1.sh ""
Where the script /usr/local/bin/test1.sh is readable and executable by kobol but
not writable. The reason for that is to prevent the account kobol from writing their own passport to the system by permanently or temporarily modifying the script and running it with elevated privileges.