回答否时重复回声

Question

我对 Bash 脚本非常陌生，所以如果问题有些不连贯，请见谅。

如果用户回答“否”，我希望我的脚本重复一个问题 4 次，如果用户回答“是”，那么脚本可以退出，这就是我目前所拥有的

#!/bin/bash
echo "Would you like a cup of tea?"

read answer

while true;

do

        if [ $answer = Y ] then
        echo "Great, I'll make tea now"; then
                break
        if [ $answer = N ] then
        echo "Are you sure?"
        continue
        if [ $answer = N ] then
        echo "Are you sure?"
        continue
        if [ $answer = N ] then
        echo "Are you sure?"
        continue
        if [ $answer = N ] then
        echo "Ok, I give up!"
        exit
fi

Answer 1

您需要在代码中修复许多问题。我强烈建议您在继续之前先阅读基本教程。

无论如何，你可以做的最基本的程序是这样的：

count=0
while true;
do
    read -r answer
    if [ "$answer" = "Y" ]; then
        echo "Great, I'll make tea now"
        break
    fi
    if [ "$answer" = "N" ]; then
        echo "Are you sure?"
        count=$((count+1))
        if [ $count = 4 ]; then
            break
        fi
    fi
done

我们将count 设置为用户提供“N”作为答案的次数，当达到 4 时进行检查，然后中断。