You shouldn't place user programs in system directories. Use /root/bin or /home/user/bin instead. Also makes it easier to backup scripts and binaries you've written or downloaded and might be hard to find again.

Anything instead `` is executed and passed to the command as an argument, so you just `gconftool-2 -g /path/to/a/key` would be used in place of the static value.

If you scroll back to my second post you will see that I wrote a nice little function that automates this for you. You just have to pass it the key and type and it handles getting and setting.

@ jonww, that key is for the default brightness, he is using adv-backlight which has its own key.