Bash脚本未等待读取

我试图以另一个用户的身份运行命令，并以该用户的身份读取输入。由于某种原因，脚本没有在

read

命令上暂停，我不确定原因。下面是脚本的一个示例：

#!/bin/bash
username='anthony'
sudo -H -u "$username" bash << 'END_COMMAND'

# Commands to be run as new user
# -------------------------------

echo "#!  Running as new user $USER..."


echo "#!  Gathering setup information for $USER..."
echo -n "Enter your name and press [ENTER]: "
read name
echo -n "Enter your email and press [ENTER]: "
read email
END_COMMAND

echo "Done"

#/bin/bash
用户名class='anthony'
sudo-H-u“$username”bash
read
正在从stdin读取，而
bash
正在从sudo继承其stdin，后者来自herdeoc。如果你希望它来自其他地方，你需要明确。例如：

bash  3<&0 << 'END_COMMAND'
...
read <&3
...

bash3你能让这个脚本检查它是否以sudo运行，如果不是，用sudo执行它自己吗

#!/bin/bash
username='anthony'

if [[ -z "${SUDO_USER}" ]]; then
    exec sudo -H -u "${username}" -- $0
fi

echo "
# Commands to be run as new user
# -------------------------------
"
echo "#!  Running as new user $USER..."

echo "#!  Gathering setup information for $USER..."
echo -n "Enter your name and press [ENTER]: "
read name
echo -n "Enter your email and press [ENTER]: "
read email

sudo -H -u "$username" bash << 'END_COMMAND'
...
read email < /dev/tty
...

#!/bin/bash
username='anthony'

if [[ -z "${SUDO_USER}" ]]; then
    exec sudo -H -u "${username}" -- $0
fi

echo "
# Commands to be run as new user
# -------------------------------
"
echo "#!  Running as new user $USER..."

echo "#!  Gathering setup information for $USER..."
echo -n "Enter your name and press [ENTER]: "
read name
echo -n "Enter your email and press [ENTER]: "
read email