Arrays Of Random Numbers

#!/bin/bash

# Create $1 random numbers between zero and $2. e.g. echo $(rand 8 32)
function rand { 
   rand_2=$(($1*4))
   for rand_1 in $(od -vAn -N${rand_2} -tu4 < /dev/urandom); do echo $(($rand_1%$2));done
}

idx=0
declare -a data
for x in $(rand 100 32)
do
    data[$idx]=$x
    ((idx++))
done
for idx in {0..99}
do  
    echo $idx - ${data[idx]}
done