Ordering an input string in descending word length - 161 characters

split-string-and-sort-by-length.min.sh

#!/bin/bash

a=(${1/// });for l in `seq 0 ${#a[@]}`;do for((i=l;i>0;i--));do j=$((i-1));[ ${#a[i]} -gt ${#a[j]} ]&&eval "a[$j]=${a[$i]};a[$i]=${a[$j]}";done;done;echo ${a[*]}