gdmsetup
Launch a GUI for configuring the GNOME Display Manager (GDM). tldr-pages
On several platforms
Several platforms
Launch a GUI for configuring the GNOME Display Manager (GDM). Results in edited files in either /etc/X11/gdm/gdm.conf or /etc/gdm/gdm.conf depending on distribution and environment.
Run the GNOME Display Manager GUI configuration application
gdmsetupIdentify