CENTOS : Install Desktop GUI

1. Install GNOME 

#yum -y groups install "GNOME Desktop" 

2. Install KDE Desktop Environment

#yum -y groups install "KDE Plasma Workspaces" 

3. Install Cinnamon Desktop Environment 

# yum -y install epel-release
# sed -i -e "s/\]$/\]\npriority=5/g" /etc/yum.repos.d/epel.repo # set [priority=5]
# sed -i -e "s/enabled=1/enabled=0/g" /etc/yum.repos.d/epel.repo # for another way, change to [enabled=0] and use it only when needed
# yum --enablerepo=epel install [Package] # if [enabled=0], input a command to use the repository
# yum --enablerepo=epel -y install cinnamon*

4. Install MATE Desktop Environment 

# yum --enablerepo=epel -y groups install "MATE Desktop"

5. Install Xfce Desktop Environment

# yum -y groupinstall X11
# yum --enablerepo=epel -y groups install "Xfce"