脚本无法识别sudo密码并且失败

Question

因此，我有一个运行sudo apt-get upgrade并自动更新的小脚本（即使我是否要升级也可以回答），但是当我通过./sync.sh运行该脚本时，甚至会提示我输入密码我在脚本中声明了它。

有人知道发生了什么吗？

sync.sh

#Colors
green=$(tput setaf 2)
normal=$(tput sgr0)

clear
echo password | yes | sudo -S apt-get upgrade

echo "${green}-------- APT-GET UPGRADE DONE --------${normal}"

echo password | yes | sudo -S apt-get update

echo "${green}-------- APT-GET UPDATE DONE ---------${normal}"

输出如下：

Sorry, try again.
Sorry, try again.
Sorry, try again.
sudo: 3 incorrect password attempts
-------- APT-GET UPGRADE DONE --------
Sorry, try again.
Sorry, try again.
Sorry, try again.
sudo: 3 incorrect password attempts
-------- APT-GET UPDATE DONE --------

Answer 1

问题可能在于echo password | yes永远返回

y
y
y

尝试使用xargs：

echo password | xargs yes

或仅yes，不带管道

yes password