Monitor wlan0 Interface (Wireless) to avoid disconnection from Raspberry Pi

I had implemented my raspberry pi to use wireless network, unfortunately the connection might after a while disconnect, the only option that I have found was to run a script that check the connection and re-connect if network is down.

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How to re-enable the systray (indicator panel) on Ubuntu 14.04

Installation in the terminal:

sudo apt-add-repository ppa:fixnix/indicator-systemtray-unity
sudo apt-get update
sudo apt-get install indicator-systemtray-unity

Once installed, you can enable it by this command:

gsettings list-recursively net.launchpad.indicator.systemtray

If you wish to remove it, run this command:

sudo apt-get --purge remove indicator-systemtray-unity