Treesize

#!/bin/sh
du -k --max-depth=1 $1 | sort -nr | awk '
        BEGIN {
                split("KB,MB,GB,TB",Units, ",");
        }
        {
                u = 1
                while ($1 >= 1024) {
                        $1 = $1 / 1024;
                        u += 1
                }
                $1 = sprintf("%.1f %s", $1, Units[u]);
                print $0;
        }
        '