Solved: “User is not in the sudoers file. This incident will be reported”

When you try to install a package on Linux, you may face an error like this:

user@linux-debian-gnu:/$ sudo /usr/sbin/visudo
We trust you have received the usual lecture from the local System Administrator.
It usually boils down to these three things:
#1) Respect the privacy of others.
#2) Think before you type.
#3) With great power comes great responsibility.
[sudo] password for user:
User is not in the sudoers file. This incident will be reported.

You need to add your user to sudoers file. In order to do that; login as root and type the following:

echo 'user ALL=(ALL) ALL' >> /etc/sudoers

Note: You must use your own username instead of “user”.

Desktop enhancements on GNOME 3.2

You may fed up with your default desktop interface If you don’t add new features to GNOME. Especially If you are an experienced Windows user, you probably look for similar taskbar, icons and other useful tools.

I will mention about two small tools to enhanced your desktop experience on Linux:

  1. Gnome Tweak Tool
  2. Tint2

You may download these tools from “Add/Remove Software“.

Gnome Tweek Tool and Tint2 Installation
Gnome Tweek Tool and Tint2 Installation

To use these tools after installation, look for “Advanced Settings” and “TintWizard” on “Activities > Applications” menu.

Configuration
Configuration

Although all tweak tools, you may want to change your desktop environment from GNOME to KDE. Here is the code you should use for that (you will need root privileges):

yum install @kde-desktop