How to list folders by size in Linux?

[Master]

I always wanted to list folders by size to free up my disk space. Here is one line of command which produces a nice summary of folders sorted by folder size. This command should be pretty handy to use in your linux command line, if you are working as administrator.

du -sc /* | sort -nr

and the output would look like

[root@vps ~]# du -sc /* | sort -nr
19012224 total
15340868 /home
1658900 /var
1096664 /usr
625316 /root
178416 /backups
60764 /lib
17004 /etc
13508 /tmp
9292 /sbin
5868 /bin
5588 /db.sql.gz
8 /mnt
4 /srv
4 /selinux
4 /opt
4 /media
4 /lost+found
4 /dev
4 /boot
0 /t
0 /sys
0 /proc
0 /aquota.user
0 /aquota.group