尝试从文本文件创建用户，但在 Ubuntu 中不断收到无效用户名错误

Question

我现在尝试从文本文件在 Ubuntu 中创建用户，它看起来像这样：

student1
student2
student3
student4
student5

但是，我不断收到无效的用户名错误。例如 'seradd：无效的用户名'student5

这是我的代码。第一个参数是输入文件，第二个输入是输出文件。有人可以帮忙吗？

#!/bin/bash
if test ${#} -lt 1 
then
    echo "Please provide the input file"
    exit 1
else
    cat ${1} | while read user
    do
        randompw=$(cat /dev/urandom | tr -dc 'a-zA-Z0-9' | fold -w 8 | head -n 1)
        useradd -m -s /bin/bash ${user}
        echo ${newuser}:${randompw} | chpasswd
        if test $# -lt 2
            then
                echo ${newuser}:${randompw} >> pwlist.txt
            else
                echo ${newuser}:${randompw} >> ${2}
            fi
        if id -u ${user}
            then
                echo "User account ${user} created successfully"
            else
                echo "User account ${user} created unsuccessfully"
            fi
    done
fi

Answer 1

变量

newuser

未定义。我认为你的意思是

$user

。

建议：

• 将变量引用和计算括在双引号内。我修好了。

#!/bin/bash
if test ${#} -lt 1
then
    echo "Please provide the input file"
    exit 1
else
    cat "${1}" | while read user
    do
        randompw="$(cat /dev/urandom | tr -dc 'a-zA-Z0-9' | fold -w 8 | head -n 1)"
        useradd -m -s /bin/bash "${user}"
        echo "${user}:${randompw}" | chpasswd
        if test $# -lt 2
            then
                echo "${user}:${randompw}" >> pwlist.txt
            else
                echo "${user}:${randompw}" >> ${2}
            fi
        if id -u "${user}"
            then
                echo "User account ${user} created successfully"
            else
                echo "User account ${user} created unsuccessfully"
            fi
    done
fi

Answer 2

您能找到解决方案吗？

抱歉，我想不出其他方法来问你..