Use sudo without password INSIDE a script

Question

For some reason I need, as user, to run without sudo a script script.sh which needs root privileges to work.
I saw as the only solution to put sudo INSIDE script.sh. Let

Answer 1

In new /etc/sudoers.d/apt-get file, put single line:

user ALL=(ALL:ALL) NOPASSWD:/usr/bin/apt-get update

Fully qualified path to executable is required here.

Then use following in your script:

sudo apt-get update

Here, fully specified name is not required. Sudo uses PATH environment variable for executable resolution.

While changing and checking sudoers configuration, be sure to keep another root session open for error recovery.