How can I delete things from my hard drive? I am using linpus lite on an Acer Aspire One and have only 8GB of space on my SSD. I deleted some large files to free up some space (right click, delete), but they just got moved to the trash and did NOT free up any space. So, using the terminal, I used the following command in the Trash folders: rm -rf *, and now there are no files in the Trash, but I still have not freed up any space!!! Help me, even though I should have only a couple of text documents on the computer, I am down to only 600 MB of free space!

To find out where all my space is being consumed, it tried:

[user@localhost ~]$ cd /
[user@localhost /]$ du -h
[removed most of output]
...
176M ./var
3.5G .

I interpret this as only 3.5 GB is currently being used, however the following (I believe) implies that 5.5 GB (plus 1.5 GB that I'm not allowed to access?) is currently being used.

[user@localhost /]$ df -h
Filesystem Size Used Avail Use% Mounted on
/dev/sda1 6.5G 5.5G 615M 91% /
none 247M 0 247M 0% /dev/shm
none 6.5G 5.5G 615M 91% /mnt/home


Any suggestions as to what is occupying so much space? or how to really remove the files?