Question

所以，我试图制作一个密码脚本，它大部分都有效。然而，循环继续，而不是在每个＆＃34;不正确的密码＆＃34;之后停止，因此用户可以输入密码。然而，它不断发送不正确的密码，并没有任何机会输入任何内容。我也尝试将read password置于直行之下，但这也没有效果。

#!/bin/bash
# Author: Dom (GlitchyShadowZ)
# No name lol
# Password Protected Terminal

echo "Please enter password to continue"
str="owo"
read password

until [ $password = $str ]
do
    # Password Verification
    if [ $password = $str ];
    then
        echo "Password correct. Logging in"
    else
        echo "Password Incorrect. Try again."
    fi
done

Answer 1

每次比较之前都必须阅读密码。此外，您正在检查$password = $str条件两次 - 没有必要。您只需检查一次，方法是从循环中完全删除if并在脚本末尾移动Password correct. Logging in，如下所示：

#!/bin/bash

# Author: Dom (GlitchyShadowZ)

# No name lol

# Password Protected Terminal

echo "Please enter password to continue"
str="owo"
read password

until [ "$password" = "$str" ]
do
    echo "Password Incorrect. Try again."
    read password
done

echo "Password correct. Logging in"

输入正确的密码后，

或使用while true和break内部循环：

#!/bin/bash

# Author: Dom (GlitchyShadowZ)

# No name lol

# Password Protected Terminal


str="owo"
password=""

echo "Please enter password to continue"

while true
do
    read password
    # Password Verification
    if [ "$password" = "$str" ];
    then
    echo "Password correct. Logging in"
    break
    else
    echo "Password Incorrect. Try again."
    fi
done

在这两种情况下，请确保将""放在变量周围，因为当前运行脚本并且没有输入任何内容并立即按下 Enter 时，您会得到：

line 13: [: =: unary operator expected

终端密码

1 个答案: