/usr/bin/xdg-desktop-icon
/usr/bin/xdg-desktop-menu
/usr/bin/xdg-email
/usr/bin/xdg-icon-resource
/usr/bin/xdg-mime
/usr/bin/xdg-open
/usr/bin/xdg-screensaver
/usr/bin/xdg-settings
You may install this package on Debian with
apt-get
install xdg-utils