nm-applet -V (return code: 1)
Failed to connect to Mir: Failed to connect to server socket: No such file or directory Unable to init server: Could not connect: Connection refused (nm-applet:19949): Gtk-WARNING **: cannot open display:
nm-applet --help (return code: 0)
Usage: nm-applet This program is a component of NetworkManager (https://wiki.gnome.org/Projects/NetworkManager/). It is not intended for command-line interaction but instead runs in the GNOME desktop environment.