du -sh /*
4.0M /bin
13M /boot
0 /cdrom
168K /dev
25M /etc
269G /home
4.0K /initrd
0 /initrd.img
53M /lib
48K /lost+found
16K /media
4.0K /mnt
35M /opt
du: cannot read directory `/proc/12223/task': No such file or directory
du: cannot read directory `/proc/12223/fd': No such file or directory
du: cannot access `/proc/12224/task/12224/fd/4': No such file or directory
du: cannot access `/proc/12224/fd/4': No such file or directory
899M /proc
5.8M /root
3.5M /sbin
4.0K /srv
0 /sys
12K /tmp
2.6G /usr
3.5G /var
0 /vmlinuz