Comment

Llauro

You can get that in human readable form using two commands:

To get the total amount of each subdirectory of the actual one (does not summarizes):
du -hs * | sort n

To get the total amount of the actual whole tree:
du -hs

I have been not able to summarize the whole tree showing the size of each first subdirectory. Something like 'du -hs * ..' or 'du -hs .' does not work for that.