Replace Unity by MATE

This is a procedure to install MATE desktop on Ubuntu GNU/Linux, and leave MATE collection applications instead of Unity/GNOME ones.

• 1. Follow the steps to register the repositories

• 2. Install packages (command to avoid dialogs):

  sudo apt-get install --no-install-recommends mate-desktop-environment mate-desktop-environment-extra mate-archive-keyring caja-gksu caja-sendto mate-indicator-applet mate-media-gstreamer mate-icon-theme-faenza

• 3. Remove substituted packages:

  sudo apt-get remove gcalctool gnome-screenshot gedit file-roller eog gnome-system-monitor gnome-system-log baobab gnome-terminal gnome-applets gnome-media gnome-power-manager gnome-screensaver

• 4. Set default desktop for new users:

  sudo /usr/lib/lightdm/lightdm-set-defaults -s mate

• 5. Change and fix default application for some MIME (file) types:**

  # Folders:
  xdg-mime default caja-folder-handler.desktop inode/directory
  # SSH sites:
  xdg-mime default caja-folder-handler.desktop x-scheme-handler/ssh
  # FTP sites:
  xdg-mime default caja-folder-handler.desktop x-scheme-handler/ftp
  # Images:
  xdg-mime default eom.desktop image/bmp
  xdg-mime default eom.desktop image/gif
  xdg-mime default eom.desktop image/jpeg
  xdg-mime default eom.desktop image/x-pcx
  xdg-mime default eom.desktop image/png
  xdg-mime default eom.desktop image/tiff
  # Plain text:
  xdg-mime default pluma.desktop text/plain
  xdg-mime default pluma.desktop text/x-log
  xdg-mime default pluma.desktop application/x-perl
  xdg-mime default pluma.desktop application/javascript
  xdg-mime default pluma.desktop application/rdf+xml
  # If you want for Wine plain text files:
  xdg-mime default pluma.desktop application/x-wine-extension-ini
  xdg-mime default pluma.desktop application/x-wine-extension-vbs
  xdg-mime default pluma.desktop text/x-csrc
  xdg-mime default pluma.desktop application/x-wine-extension-inf
  # PDF:
  xdg-mime default atril.desktop application/pdf

• 6. Set new default terminal emulator:

  update-alternatives --install "$(which x-terminal-emulator)" x-terminal-emulator "$(which mate-terminal)" 30
  update-alternatives --set x-terminal-emulator "$(which mate-terminal)"

• 7. Close desktop session and login with MATE Desktop.