I am coming from Windows 8 and want to test new Ubuntu 12.xx.
How can i change the position of the panel from top to bottom?
(Assuming you're using the Classic desktop) you can just Super-Alt-Drag the panels.
If you're using Unity, you can't customise this. If it's something you need, I'd strongly suggest trying the classic desktop.
Simple answer: You can't. At least not with Unity.
More complicated answer: Unity Desktop(and Gnome Shell) is made to be simple and look the same on every computer. If you want something that is more customisable, try for example KDE or XFCE, which you can install through the software centre. Then you can set the desktop environment you want to use from the login screen.
Regarding moving the panel in Unity: comment #2 in Movement of Unity launcher has this:
I think the report actually meant that the launcher should be movable to other edges of the screen. I'm afraid that won't work with our broader design goals, so we won't implement that. We want the launcher always close to the Ubuntu button.
AFAIK, that's how it still is.
You cannot move the panel from the top to the bottom using the default Unity desktop.
If you install
gnome-shell from Ubuntu Software Centre and use
gnome classic desktop (by selecting it from the login menu) then you can move the panel as described in the other answers.
"Super+Alt+Right-click" on the top panel and select "properties".
Choose "Orientation" from it.
Here it is:
Power off your device. Upon restart you should have the Fbpanel as bottom panel
and no Unity panels.
Customize Fbpanel, all you need to edit is in this file:
That's is it!
Later edit: initially the shutdown restart and lock may not work but i uploaded my config file on google drive with repaired commands:
Execute this in a terminal (Unity):
gsettings set com.canonical.Unity.Launcher launcher-position Bottom
Due to long-term design goals for the default Ubuntu desktop, you can't arrange desktop components like that. However, we have lots of different desktops in Ubuntu that have many different features like that. We have lots of alternative panels, start menus, etc. But the default desktop is not that customizable.