start my GUI application on ubuntu start up with sudo permission?

Question

i am new to ubuntu .Using Ubuntu 14.04 LTS.

1 - i want to start my GUI application on ubuntu start up. 2 - the GUI application needs SUDO permission . is there any way i can start my application without entering suso password and run my application.

thanks.

Answer 1

Run the command;

visudo

and add end of line;

username ALL=NOPASSWD: <application>

Try to run after the application of sudo or gksudo.

Answer 2

We will have to add a sudoer rule for you. You can do this by adding a sudo snippet in the /etc/sudoers.d directory. For example, for allowing your current user to run /usr/sbin/gparted, issue the following command:

echo $( whoami ) ALL=NOPASSWD: /usr/sbin/gparted | sudo tee /etc/sudoers.d/mysudorule

At this point you can launch sudo -i /usr/sbin/gparted and it will launch with elevated privileges. Since now you can launch the appplication as root, no questions asked, you can go to the Startup Applications program and add a new entry where you fill the command with sudo -i /usr/sbin/gparted. Note that I have not tested this. The -i tells it to fully log in as root.

All examples here use /usr/sbin/gparted because it's tool that requires root, and as such was easy to test. Obviously, you'll need to use your own programs full path.

I know there is a discussion that you should never run sudo for a graphical program, but gksu is not installed by default, and pkexec asks a password regardless of the sudoers configuration. My tests indicate that sudo -i just works fine for graphical applications.