You want to know more about your partitions and files sizes : here are the tools you need.
To type in characters using their hexadecimal, in Ubuntu, it's not really complicated.
Let me introduce you to a new Linux distribution that I have just discovered (even though it exists for more than a year): elementary OS.
Manage your Linux PC start with this article.
Some indications on how to manage groups and users.
Here are the commands to know the disks/partitions sizes and also the files sizes in the directories.
With Hadopi letters being sent to Net users, being anonymous is on the news !
Here is what I have installed on top of the latest Ubuntu version Precise Pangolin 12.04.
There are now several possibilities to synchronise your Android phone to your Ubuntu PC locally without using a cloud.
AFUL can help you choose your computer reseller.