LinuxQuestions.org - How do I use sudo in a script without asking for password?

I've written a small script that creates a network bridge for a virtual machine (vbox), but each line requires root access, ie sudo, I've added my user name to the sudoers file using visudo:

user ALL=(ALL) ALL

and I added my user group also:

%group ALL=(ALL) ALL

rebooted, and still, each line in the script shows a permission denied:

Code:

#!/bin/bash



# Check if interface exists, if so delete it



if [ -z "vbox0" ]; then

VBoxDeleteIF vbox0

fi



# Create virtual connection br0



brctl addbr br0



# Clear eth0 setting



ifconfig eth0 0.0.0.0



# Create bridge



brctl addif br0 eth0



# Change etho setting to br0



dhclient br0



# Create virtual vbox host



VBoxAddIF vbox0 <user> br0

I even set the execute bit for the script.

I would like to run the script without asking for a password for the script and for each line.

When I either power down or reboot, the br0 connection is lost and I have to manually remove vbox0 and re-create br0, is there a way to make br0 permanent? or have the system run the above script at start up, I'm using Ubuntu (Hardy).