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--- blog:change_windows_desktop_background_for_day_and_night_ubuntu_gnu:linux [2010-12-30 09:01] – brb
+++ blog:change_windows_desktop_background_for_day_and_night_ubuntu_gnu:linux [2010-12-30 09:05] – brb
@@ Line 18: / Line 18: @@
     * add an hourly task to the task manager (or even cleaner, two tasks at the switch times (7:00 and 20:00)
-<file bash | changedesktop.sh>
+<file bash changedesktop.sh>
 #!/bin/bash
 # Change desktop background image depending on the time of day
@@ Line 45: / Line 45: @@
 </file>
+Note: gconftool needs some environment variables of the user to run. These can be saved during login for later use
+<file bash xdbus.sh>
+#!/bin/sh
+# Export the dbus session address on startup so it can be used by cron
+# use in cron /home/brb/.config/Xdbus;
+xdbus=$HOME/.config/Xdbus
+touch $xdbus
+chmod 600 $xdbus
+env | grep DBUS_SESSION_BUS_ADDRESS > $xdbus
+echo 'export DBUS_SESSION_BUS_ADDRESS' >> $xdbus
+# Export XAUTHORITY value on startup so it can be used by cron
+env | grep XAUTHORITY >> $xdbus
+echo 'export XAUTHORITY' >> $xdbus
+</file>
+Add changedesktop to crontab, using ''crontab -e''
+<file>
+# m h  dom mon dow   command
+@reboot   /home/brb/bin/changedesktop.sh
+* * * * /home/brb/bin/changedesktop.sh
+</file>
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