输入若干个数值存入数组中，采用冒泡算法进行升序或降序排序

#!/bin/bash
read -p "请输入数值个数：" COUNT
declare -a nums
for ((i=0;i<$COUNT;i++));do
num[$i]=$RANDOM
done
echo "The initial array:"
echo ${num[@]}

declare -i n=$COUNT
for (( i=0; i<n-1; i++ ));do
for (( j=0; j<n-1-i; j++ ));do
let x=$j+1
if (( ${num[$j]} < ${num[$x]} ));then
#从大到小排列
tmp=${num[$x]}
num[$x]=${num[$j]}
num[$j]=$tmp
fi
done
done
echo "After sort:"
echo ${num[*]}
echo "the max integer is $num,the min integer is ${num[$((n-1))]}"