Hi
Try using ttps://launchpad.net/gpoweroff also the other way to set auto shut down is
Also another way is
A simpler way is to add the appropriate shutdown command to the
/etc/profile file (as root):
Open a terminal window and su to root:
[user@localhost ~]$ su
Password: (enter root password here)This example will open
/etc/profile in the kate text editor:
[root@localhost user] # kate /etc/profileAdd the following command to the end of the file:
shutdown -h hh:mmReplace
hh:mm with the time at which you want the
computer to shutdown automatically each day
The
-h option tells shutdown to turn the
computer off (halt).
For more information on the shutdown
command open a terminal window and enter:
man shutdownRemember, the man command is your friend.
With it you can get information on nearly
any command available in your Linux
system
Let me know if this helps