Convert Antergos Gnome to Xfce (assuming gdm)

gnome2xfce.sh

# This will convert an Antergos Gnome installation to Xfce
# GDM will be replaced with LightDM with the GTK greeter
# It keeps a few Gnome utilities around and installs Xfce4's WhiskerMenu plugin

# Don't continue on errors, since we can really screw up a system if we do
set -e

# Kill existing sessions
sudo systemctl stop gdm

# Switch display manager
sudo systemctl disable gdm
sudo pacman -S lightdm lightdm-gtk-greeter
sudo systemctl enable lightdm

# Remove extra stuff, if needed
#sudo pacman -Rs \
#    chrome-gnome-shell-git

# Gnome
sudo pacman -Rs \
    antergos-gnome-defaults-list \
    brasero \
    eog \
    gdm \
    gedit \
    gnome-backgrounds \
    gnome-calendar \
    gnome-contacts \
    gnome-control-center \
    gnome-documents \
    gnome-font-viewer \
    gnome-logs \
    gnome-maps \
    gnome-music \
    gnome-photos \
    gnome-screenshot \
    gnome-shell \
    gnome-shell-extensions \
    gnome-shell-extension-dash-to-dock \
    gnome-sound-recorder \
    gnome-system-monitor \
    gnome-terminal \
    gnome-tweak-tool \
    gnome-weather \
    nautilus \
    polari \
    totem \
    xscreensaver

# Xfce
sudo pacman -S \
    gamin \
    mousepad \
    parole \
    polkit-gnome \
    pragha \
    ristretto \
    thunar-archive-plugin \
    xfce4 \
    xfburn \
    xfce4-battery-plugin \
    xfce4-datetime-plugin \
    xfce4-notifyd \
    xfce4-pulseaudio-plugin \
    xfce4-screenshooter \
    xfce4-taskmanager \
    xfce4-whiskermenu-plugin

# Start lightdm, select Xfce in the session menu
sudo systemctl start lightdm