~/.xinitrc

.xinitrc

#!/bin/sh
#
# ~/.xinitrc
#
# Executed by startx (run your window manager from here)

if [ -d /etc/X11/xinit/xinitrc.d ]; then
  for f in /etc/X11/xinit/xinitrc.d/*; do
    [ -x "$f" ] && . "$f"
  done
  unset f
fi

[ -e ~/.Xresources ] && xrdb -merge ~/.Xresources

# URxvt daemon
urxvtd -q -o -f
# Music-Playing Daemon
mpd

# Disable mouse acceleration
xset m 1 1

# exec gnome-session
# exec startkde
# exec startxfce4
# ...or the Window Manager of your choice

case $1 in
    xfce4)
        export DE="xfce"
        exec startxfce4
        ;;
    openbox)
        exec openbox-session
        ;;
    i3)
        feh --bg-scale ~/pics/walls/snowy.jpg
        exec i3
        ;;
    *)
        export DE="xfce"
        exec startxfce4
        ;;
esac