On Ubuntu 16.04, I ran this command on terminal:
sudo rm -rf ~/.config
After this top taskbar is removed, and I can't go anywhere. So, I reboot system from the terminal which was already opened.
After reboot, system boots fine. I have noticed that chrome was removed and there is no wifi indicator on taskbar.
So, I reinstall chrome and ran few commands like
killall unity-panel-service sudo service network-manager restart sudo apt-get install indicator-applet indicator-network
to get it back, but nothing.. except I installed chrome again and all logins and history was not removed. (I wonder why those didn't removed with chrome)
And now I'm unable to connect to any other wifi network from System Settings > Network > Wireless.
Solution I need is, wifi indicator back and I should able to connect to other network as I was able to do before..