How to Add User to Sudoers in Ubuntu
On Ubuntu, the easiest way to grant sudo privileges to a user is by adding the user to the sudo group. Members of this group will be able to execute any command as root via sudo.
How to Add User to Sudoers in CentOS
To grant sudo access to user in CentOS you have two option. The first one is to add the user to the sudoers file. The second option is to add the user to the wheel group.
How to Run Sudo Command Without Password
The sudo command allows trusted users to run programs as another user, by default the root user. This tutorial explains how to configure the sudoers file and allow certain users to run sudo commands without being asked for the password.
Sudo Command in Linux
The sudo command allows you to run programs as another user, by default the root user. Using sudo instead of login in as root is more secure because, you can grant limited administrative privileges to individual users without them knowing the root password.