How to Show desktop on Ubuntu 15.10 Wily
The Linux Ubuntu Tip Show Visually How to Enable the Show desktop Launcher for Ubuntu 15.10 Wily Werewolf GNU/Linux desktop – Step by step Tutorial.
Once the Show desktop Launcher is Enabled you’ll be able to Minimize and Restore All appearing Windows on Ubuntu Linux desktop.

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Open Ubuntu System Settings.
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Select the Apparence Icon
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On the Behavior Tab
Check the Add Show desktop Icon to the Launcher box
After you’ll find the Show desktop Launcher on Ubuntu desktop! ;)
