This short config will show you how to install Spotify client on Ubuntu 14.04 LTS Linux. Let's start by adding a spotify repository:
echo 'deb http://repository.spotify.com stable non-free' >> /etc/apt/sources.list
apt-key adv --keyserver hkp://keyserver.ubuntu.com:80 --recv-keys 13B00F1FD2C19886
apt-get update

This article will describe multiple procedures on how to install various GUI desktop environments on Ubuntu Linux 14.04 LTS (Trusty Thar). The article assumes that no desktop manager nor display manager is currently installed on your system. Furthermore, If the display manager needs to be installed explicitly we will install lightweight XDM. In case that you require different display manager simply replace xdm package listed in below commands with some alternatives such as GDM, KDM, lightdm etc.

UNITY

$ sudo apt-get install ubuntu-desktop
How to install unity desktop on ubuntu linux

GNOME

$ sudo apt-get install ubuntu-gnome-desktop
How to install gnome desktop on ubuntu linux

To check your current and previous runlevel use runlevel command:
# runlevel 
N 2
From the above command output we can see that there was no previous runlevel detected and current run level is 2. Runlevel list defined by the Ubuntu Linux:
  • 1 - Single
  • 2,3,4,5 - User defined runlevels. Default 2
  • 6 - Reboot

This article will describe an USB-Creator installation procedure on Ubuntu Linux. USB-Creator allows you to create a bootable USB key from Ubuntu CD or ISO image. First, we need to install all pre-requisites in order to build USB-Creator package. Once we have successfully build USB-creator packages we use dpkg command to install all USB-Creator on the system.

Let's start by pre-requisites installation:
# apt-get update
# apt-get install bzr pbuilder debhelper dh-translations python3-distutils-extra pkg-kde-tools
Now download a current development code from "brz" revision control system:
# bzr branch lp:usb-creator usb-creator.trunk
Navigate to USB-Creator's source code directory:
# cd usb-creator.trunk/

The following linux command procedure can be used to install Wine the Microsoft Windows Compatibility Layer (Binary Emulator and Library) on Ubuntu Linux amd64. If you are running 64bit Ubuntu Linux system in order to install Wine the i386 architecture needs to be enabled first. Otherwise any attempt to install Wine will result in:
Some packages could not be installed. This may mean that you have
requested an impossible situation or if you are using the unstable
distribution that some required packages have not yet been created
or been moved out of Incoming.
The following information may help to resolve the situation:

The following packages have unmet dependencies:
 wine : Depends: wine1.6 but it is not going to be installed
E: Unable to correct problems, you have held broken packages.

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