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Lubuntu (LXDE): restore a logout/shutdown icon in the taskbar

From time to time, an inexperienced user for whom I have set up a Lubuntu 12.04 LTS system, inadvertently mess the layout of her taskbar (a lock feature as in KDE's plasmoids would be nice ;-).

While restoring all of her stuff, I couldn't find how to display a shutdown shortcut. This option/item was just not in the widgets list. After a little duckducking, I found I had to edit the following file:

$ sudo leafpad /usr/share/applications/lubuntu-logout.desktop

And comment out1 the line starting with "NoDisplay":

[Desktop Entry]
Name=Shutdown
Name[zh_TW]=關機
Type=Application
Comment=Shutdown or Reboot
Icon=system-shutdown-panel
Exec=lubuntu-logout
#NoDisplay=true
Categories=Settings;DesktopSettings

After that, I was able to re-add a shutdown icon:

Right Click on LXPanel > Add/Remove Panel Items > Add > Application Launch Bar > Double Click on Application Launch Bar > Preferences > Select Shutdown from the list and Click "Add" > Close > Close

1 or maybe change its value to false, or delete it, be CRAZY!

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