Add and remove launcher icons from command line

Solution 1:

• To view the current ones:

  gsettings get com.canonical.Unity.Launcher favorites
  

  would output something like:

  ['nautilus-home.desktop', 'chromium-browser.desktop', 'gnome-system-monitor.desktop']
  

• To add new entry, say vlc, add its .desktop file ie. vlc.desktop as:

  gsettings set com.canonical.Unity.Launcher favorites "['nautilus-home.desktop', 'chromium-browser.desktop', 'gnome-system-monitor.desktop', 'vlc.desktop']"
  

(those included in the value string "[... ... ...]" will be show up in the launcher. You can use this to add or remove the launchers of your choice.)

• To reset to the default values:

  gsettings reset com.canonical.Unity.Launcher favorites