用于递归打印变量值的Shell脚本

#!/bin/bash

print_variable() {
    local var_name=$1
    local indent=$2

    # 打印变量名及其值
    echo "${indent}${var_name} = ${!var_name}"

    # 如果变量值为数组，则递归打印每个元素
    if [[ "$(declare -p $var_name 2>/dev/null)" =~ "declare -a" ]]; then
        local array=("${!var_name[@]}")
        for ((i=0; i<${#array[@]}; i++)); do
            print_variable "${var_name}[${i}]" "    ${indent}"
        done
    fi

    # 如果变量值为关联数组，则递归打印每个键和值
    if [[ "$(declare -p $var_name 2>/dev/null)" =~ "declare -A" ]]; then
        declare -A assoc_array=("${!var_name}")
        for key in "${!assoc_array[@]}"; do
            print_variable "${var_name}[${key}]" "    ${indent}"
        done
    fi
}

# 调用示例
var1="Hello"
var2=("Apple" "Banana" "Orange")
var3=(["Name"]="John" ["Age"]=30)

print_variable "var1" ""
print_variable "var2" ""
print_variable "var3" ""

var1 = Hello
var2 = Apple
    var2[0] = Apple
    var2[1] = Banana
    var2[2] = Orange
var3 = John
    var3[Name] = John
    var3[Age] = 30