sudo du -sh /*
0       /backup
9.6M    /bin
772M    /boot
4.0K    /dev
123M    /etc
18G     /home
0       /initrd.img
0       /initrd.img.old
4.9G    /lib
0       /lib64
0       /media
73G     /mnt
40K     /oldhome
0       /opt
du: cannot access ‘/proc/4593/task/4615/fd/5’: No such file or directory
du: cannot access ‘/proc/8347/task/8347/fd/4’: No such file or directory
du: cannot access ‘/proc/8347/task/8347/fdinfo/4’: No such file or directory
du: cannot access ‘/proc/8347/fd/4’: No such file or directory
du: cannot access ‘/proc/8347/fdinfo/4’: No such file or directory
0       /proc
2.5M    /root
624K    /run
12M     /sbin
4.0K    /srv
0       /sys
22M     /tmp
4.0K    /usermin-setup.out
3.4G    /usr
21G     /var
0       /vmlinuz
0       /vmlinuz.old
4.0K    /webmin-setup.out