$ env | grep ^XDG XDG_VTNR=7 XDG_SESSION_ID=c6 XDG_GREETER_DATA_DIR=/var/lib/lightdm-data/thuerrsch XDG_MENU_PREFIX=gnome- XDG_SESSION_PATH=/org/freedesktop/DisplayManager/Session2 XDG_SEAT_PATH=/org/freedesktop/DisplayManager/Seat0 XDG_CONFIG_DIRS=/etc/xdg/xdg-ubuntu:/usr/share/upstart/xdg:/etc/xdg XDG_SEAT=seat0 XDG_DATA_DIRS=/usr/share/ubuntu:/usr/share/gnome:/usr/local/share/:/usr/share/ XDG_RUNTIME_DIR=/run/user/1000 XDG_CURRENT_DESKTOP=Unity
$ ls -l /etc/xdg/menus total 40 drwxr-xr-x 2 root root 4096 Mar 10 17:25 applications-merged -rw-r--r-- 1 root root 2964 Feb 21 2012 classicmenuindicatorsystem.menu -rw-r--r-- 1 root root 19337 Feb 12 11:20 gnome-applications.menu -rw-r--r-- 1 root root 2827 Feb 21 2012 gnomecc.menu -rw-r--r-- 1 root root 2827 Mar 5 14:02 unitycc.menu -rw-r--r-- 1 root root 3891 Feb 21 2012 unity-lens-applications.menu
$ env | grep ^XDG DATA_DIR= /var/lib/ lightdm- data/thuerrsch PREFIX= gnome- PATH=/org/ freedesktop/ DisplayManager/ Session2 PATH=/org/ freedesktop/ DisplayManager/ Seat0 DIRS=/etc/ xdg/xdg- ubuntu: /usr/share/ upstart/ xdg:/etc/ xdg DIRS=/usr/ share/ubuntu: /usr/share/ gnome:/ usr/local/ share/: /usr/share/ DIR=/run/ user/1000 DESKTOP= Unity
XDG_VTNR=7
XDG_SESSION_ID=c6
XDG_GREETER_
XDG_MENU_
XDG_SESSION_
XDG_SEAT_
XDG_CONFIG_
XDG_SEAT=seat0
XDG_DATA_
XDG_RUNTIME_
XDG_CURRENT_
$ ls -l /etc/xdg/menus catorsystem. menu ons.menu applications. menu
total 40
drwxr-xr-x 2 root root 4096 Mar 10 17:25 applications-merged
-rw-r--r-- 1 root root 2964 Feb 21 2012 classicmenuindi
-rw-r--r-- 1 root root 19337 Feb 12 11:20 gnome-applicati
-rw-r--r-- 1 root root 2827 Feb 21 2012 gnomecc.menu
-rw-r--r-- 1 root root 2827 Mar 5 14:02 unitycc.menu
-rw-r--r-- 1 root root 3891 Feb 21 2012 unity-lens-