[shell] 循环判断输入值

做个记录

until [[ $flag == "yes" || $flag == "exit" ]]
do
read -p "请确认统一/合服前后数据是否一致，输入yes继续执行脚本，输入exit退出：" flag
if [[ $flag = "yes" ]]; then
    break
elif [[ $flag = "exit" ]];then
    exit
else
    continue
fi
done