shell script循环遍历字符串数组

       遇到了， 记一下， 简单东西， 我只能说， shell script语法真TM奇葩和难记：

#!/bin/bash

arr=("0" "1" "2" "3" "4" "5" "6" "7" "8" "9" "a" "b" "c" "e" "e" "f")
 
for value in ${arr[@]}
do
  echo $value
done


# 或者采取如下方式
echo "----------------------another way----------------------"

for (( i = 0 ; i < ${#arr[@]} ; i++ ))
do
  echo ${arr[$i]}
done

     结果：

0
1
2
3
4
5
6
7
8
9
a
b
c
e
e
f
----------------------another way----------------------
0
1
2
3
4
5
6
7
8
9
a
b
c
e
e
f