First choice what map you want to scan, lets scan map /TMP:
cd /tmp
Now we can scan it:
for i in G M K; do du -ah | grep [0-9]$i | sort -nr -k 1; done | head -n 11
You will get a result like this:
[login@ tmp]# for i in G M K; do du -ah | grep [0-9]$i | sort -nr -k 1; done | head -n 11 50M . 44K ./magento
du -a /var | sort -n -r | head -n 10 du -hsx *| sort -rh | head -10
find /home/* -type f -printf "%s\t%p\n" | sort -n | tail -20
find /home/*/domains/*/public_html/backups/* -type f -printf "%s\t%p\n" | sort -n | tail -20
find /var/* -type f -printf "%s\t%p\n" | sort -n | tail -20
find /usr/* -type f -printf "%s\t%p\n" | sort -n | tail -20