Recently, we tried to understand why creating a hotspot would not work in Fedora 25 with Gnome 3.
Starting the control panel from the GUI (the launcher, or the power cog) did not provide us with the debug messages needed to understand what was going on.
So we needed the command to use that would start the control panel from a a terminal window
Ubuntu 14.04 and newer, which by default are deployed with
Unity, we used:
Ubuntu 13.10 and older versions, which were deployed with
Gnome 2, we used:
Fedora 25 with
Gnome 3, we used again: