BASH脚本-菜单不显示回显

#!/bin/bash

# 定义菜单选项
options=("选项1" "选项2" "选项3" "退出")

# 显示菜单
echo "请选择一个选项："
select opt in "${options[@]}"
do
    case $opt in
        "选项1")
            echo "你选择了选项1"
            break
            ;;
        "选项2")
            echo "你选择了选项2"
            break
            ;;
        "选项3")
            echo "你选择了选项3"
            break
            ;;
        "退出")
            echo "退出菜单"
            exit 0
            ;;
        *)
            echo "无效的选项"
            ;;
    esac
done