除了标准/错误输出，还有其他输出吗？为什么捕获 root 密码的输入不到？

[lysS]

Go 代码：

func A() {
	c := exec.Command("bash")

	var i = bytes.NewBuffer(nil)
	var o = bytes.NewBuffer(nil)

	c.Stdin = i
	c.Stdout = o
	c.Stderr = o

	if err := c.Start(); err != nil {
		panic(err.Error())
	}

	i.Write([]byte("sudo echo abc"))
	i.Write([]byte("1")) // root password

	if err := c.Wait(); err != nil {
		panic(err.Error())
	}

	fmt.Println("标准 /错误输出：", o.String())
}

[XieQing0428]

sudo -S 是从标准输入读密码的，可以试试 echo "xxx" | sudo -S ...

[lolizeppelin]

好像终端密码输入有些特别
具体可以参考 pexpect 实现
python 写的比较容易看

[lolizeppelin]

https://stackoverflow.com/questions/55351259/how-does-ssh-receive-password-from-tty

For security reasons, many programs requires a password interactively from users. Quite many programs uses the following kind of check before reading a password from stdin:

if (isatty(STDIN_FILENO) == 0)
{
exit(EXIT_FAILURE);
}


也就是说你要欺骗 ssh 进程让它认为 stdin 是 tty 才行

[julyclyde]

直接读 tty