Find all large files on a Linux machine

Finds all files over 20,000KB (roughly 20MB) in size and presents their names and size in a human readable format:

find / -type f -size +20000k -exec ls -lh {} \; 2>/dev/null|awk '{print $NF ": " $5}'|sort -nrk 2,2

find / -type f -size +20000k -exec ls -lh {} \; 2>/dev/null|awk '{print $NF ": " $5}'|sort -nk 2,2