Or even better:
Code:
find / -printf "%k %p\n" | sort -g -r | head -n 20
The previous one:
Code:
find / -name "*" -exec ls -l {} \; | grep -e "^[^t][^o][^t][^a][^l]" | sort -g -r -k 5 | head -n 20
will mostly work, except it will list some files twice - once when ls -l is executed on the files' containing directory, and another time when ls -l is executed on the files themselves.