what is gnome shell
GNOME Shell is the graphical shell of the GNOME desktop environment starting with version 3, which was released on April 6, 2011.It provides basic functionality like launching applications, switching between windows and is also a widget engine.NOME Shell is the graphical shell of the GNOME desktop environment starting with version 3, which was released on April 6, 2011. It provides basic functionality like launching applications, switching between windows and is also a widget engine.