Install MATE desktop

sudo apt-add-repository -y ppa:ubuntu-mate-dev/ppa
sudo apt-add-repository -y ppa:ubuntu-mate-dev/trusty-mate
sudo apt-get update -y
sudo apt-get remove -y unity ubuntu-desktop
sudo apt-get install -y mate-desktop-environment-extras \
ubuntu-mate-core ubuntu-mate-desktop

sudo apt-get remove -y unity ubuntu-desktop
sudo apt-get install -y mate-desktop-environment-extras \
ubuntu-mate-core ubuntu-mate-desktop

purge will erase network-manager and sudo.

sudo su -
aptitude purge -y `dpkg --get-selections | grep gnome | cut -f 1`
aptitude -f install -y
aptitude purge -y `dpkg --get-selections | grep deinstall | cut -f 1`
aptitude -f install -y
apt-get install -y mate-desktop-environment-extras
apt-get install -y sudo network-manager
reboot

sudo dnf remove gnome-desktop gnome-desktop3
sudo dnf groupinstall -y "MATE Desktop"
sudo dnf install -y lightdm
sudo systemctl enable lightdm.service
sudo reboot

sudo yum remove gnome-desktop gnome-desktop3
sudo yum install -y epel-release
sudo yum update -y
sudo yum --enablerepo=epel groupinstall -y "MATE Desktop"
sudo yum install -y lightdm
sudo systemctl enable lightdm.service
sudo reboot 

• LXDE desktop
• Xfce desktop