Shell脚本数组元素在JSON PUT请求中失效，直接传URL正常

我有一个URL数组，想要遍历数组中的每个元素执行PUT请求，但数组元素无法正常生效，直接使用URL值时却能正常运行。相关代码、输出及可正常运行的代码示例如下：

问题代码 #

# 打印不匹配的URL
echo "Uncommon URLs:"
printf "%s\n" "${uncommon_urls[@]}"


IFS=$'\n' read -d '' -r -a array1 <<< "${uncommon_urls[@]}"
getApp=$(curl -X GET -H "$headers" -H "Content-Type: application/json" "$uri")
#echo $getApp
for url in "${array1[@]}"; do
        echo $url
        url=$(echo "$url" | rev | cut -c2- | rev)
        echo $url
        url=$(echo "$url" | tr -d '"')
        echo $url
       #getApp=$(echo "$getApp" | jq '.redirect_uris -= ["https://172.16.19.31:1111/login/callback"]')
       getApp=$(echo "$getApp" | jq '.redirect_uris -= ["'$url'"]')
       getAppnew=$(curl -X PUT -H "$headers" -H "Content-Type: application/json" -d "$getApp" "$uri")
done

echo urslnew
echo $getAppnew

输出 #

Uncommon URLs:
[
  "https://172.xx.xx.31:3610/login/callback",
  "https://172.xx.xx.31:3611/login/callback"
  
]

"https://172.xx.xx.31:3611/login/callback",
"https://172.xx.xx.31:3611/login/callback"
https://172.xx.xx.31:3611/login/callback
  % Total    % Received % Xferd  Average Speed   Time    Time     Time  Current
                                 Dload  Upload   Total   Spent    Left  Speed
100  3411    0  1597  100  1814   2321   2636 --:--:-- --:--:-- --:--:--  4950
"https://172.xx.xx.31:3612/login/callback",
"https://172.xx.xx.31:3612/login/callback"
https://172.xx.xx.31:3612/login/callback
  % Total    % Received % Xferd  Average Speed   Time    Time     Time  Current
                                 Dload  Upload   Total   Spent    Left  Speed
100  3411    0  1597  100  1814   3013   3422 --:--:-- --:--:-- --:--:--  6423

可正常运行的代码 #

getApp=$(echo "$getApp" | jq '.redirect_uris -= ["https://172.xx.xx.31:1111/login/callback"]')

手动定义数组可正常运行的示例 #

uncommon_urls=(
  "https://172.16.19.31:12163/login/callback"
  "https://172.16.19.31:20383/login/callback"
  "https://172.16.19.31:31990/login/callback"
  "https://172.16.19.31:21480/login/callback"
  "https://172.16.19.31:2851/login/callback"
  "https://172.16.19.31:8549/login/callback"
  "https://172.16.19.31:11092/login/callback"
  "https://172.16.19.31:11092/auth/login/callback"
  "https://172.16.19.31:3355/auth/login/callback"
  "https://172.16.19.31:10602/auth/login/callback"
)

问题核心是原uncommon_urls是JSON数组格式的字符串，不是标准bash数组，手动用IFS拆分时会把换行、括号、逗号等符号混入数组元素，导致后续处理后的URL残留无效字符，传给jq时无法匹配目标值。

修复代码 #

# 把JSON数组字符串解析为纯净的bash数组
readarray -t uncommon_urls < <(echo "$uncommon_urls" | jq -r '.[]')

getApp=$(curl -X GET -H "$headers" -H "Content-Type: application/json" "$uri")

for url in "${uncommon_urls[@]}"; do
    echo "处理URL: $url"
    # 用jq的--arg参数传递变量，避免字符串拼接的引号/特殊字符问题
    getApp=$(echo "$getApp" | jq --arg url "$url" '.redirect_uris -= [$url]')
    getAppnew=$(curl -X PUT -H "$headers" -H "Content-Type: application/json" -d "$getApp" "$uri")
done

echo "最终结果: $getAppnew"

关键改进点 #

1. 用jq -r '.[]'直接提取JSON数组中的每个URL，自动过滤掉引号、逗号等格式符号，生成纯净的bash数组
2. 用jq --arg传递URL变量，替代手动字符串拼接，避免URL含特殊字符时的语法错误
3. 移除冗余的字符串处理步骤（rev、cut、tr），减少出错环节

内容的提问来源于stack exchange，提问作者Ashish Mishra