How to position a window on desktop using keyboard

Hi friends...
How are you?
i am here with a simple trick
you can move a window on desktop using keyboard
for using it
just press Alt + Space than press m

Then press "M" key. Now use the arrow keys to move the windows around desktop to move the the program window. To set the position press enter or press Esc to return to the previous position.
You have done.....
Cheers......