Question

I have a shell script which has a for loop that prints the value of an array element. The array size is 2 but when running the for loop with that array I m not getting proper output.

以下是 shell 脚本 :

#!/bin/bash

arry=$(ls /home/developer/.ssh/  | grep ".pub")
declare -a ARR
i=0
for key in $arry
do
  ARR[i]=$(echo $key | sed  s/.pub//g )
  i=$((i+1))
done
echo ${#ARR[@]}
## the below for loop is not iterating as expected
for pri in $ARR
do
 echo $pri
done

而不是现在提供输出

2
a
heroku

上述代码产生:

2
a

上面的外壳代码有什么问题?

我比较新来弹空剧本所以请原谅我的代码你感觉不好

Attaching screenshot of the output enter image description here

Answer 1

#!/bin/bash
arry=(/home/developer/.ssh/*.pub)

ARR=(${arry[@]%%.pub})    # strip the extensions

echo "${#ARR[@]}"

for pri in "${ARR[@]}"
do
    echo "$pri"
done

使用球代替 >ls 。

使用数组代替字符串。

扩展时的引号变量。

友情链接