yn() {
  if [[ 'y' == `read -s -n 1 -p "[y/n]: " Y; echo $Y` ]];
  then eval $1;
  else eval $2;
  fi }
yn 'echo yes' 'echo no'
yn 'echo absent no function works too!'

在我的情况下，我需要从下载的脚本中读取。，

curl -Ss https://example.com/installer.sh | sh

在这种情况下，read-ryn＜/dev/tty行允许它读取输入。

printf "These files will be uploaded. Is this ok? (y/N) "
read -r yn </dev/tty

if [ "$yn" = "y" ]; then
   
   # Yes
else
   
   # No
fi

您可以使用内置的read命令；使用-p选项向用户提示问题。

从BASH4开始，您现在可以使用-i建议答案：

read -e -p "Enter the path to the file: " -i "/usr/local/etc/" FILEPATH
echo $FILEPATH

（但请记住使用“readline”选项-e以允许使用箭头键进行行编辑）

如果你想要一个“是/否”的逻辑，你可以这样做：

read -e -p "
List the content of your home dir ? [Y/n] " YN

[[ $YN == "y" || $YN == "Y" || $YN == "" ]] && ls -la ~/

更通用的是：

function menu(){
    title="Question time"
    prompt="Select:"
    options=("Yes" "No" "Maybe")
    echo "$title"
    PS3="$prompt"
    select opt in "${options[@]}" "Quit/Cancel"; do
        case "$REPLY" in
            1 ) echo "You picked $opt which is option $REPLY";;
            2 ) echo "You picked $opt which is option $REPLY";;
            3 ) echo "You picked $opt which is option $REPLY";;
            $(( ${#options[@]}+1 )) ) clear; echo "Goodbye!"; exit;;
            *) echo "Invalid option. Try another one.";continue;;
         esac
     done
     return
}

这是我整理的东西：

#!/bin/sh

promptyn () {
    while true; do
        read -p "$1 " yn
        case $yn in
            [Yy]* ) return 0;;
            [Nn]* ) return 1;;
            * ) echo "Please answer yes or no.";;
        esac
    done
}

if promptyn "is the sky blue?"; then
    echo "yes"
else
    echo "no"
fi

我是一个初学者，所以要谨慎对待，但它似乎奏效了。

使用PyInquirer的一行python替代方案

python3 -c 'import PyInquirer; print(PyInquirer.prompt([{"type":"confirm", "message":"Do you want to continue?", "name":"r"}]).get("r"))'

它支持yes/no/cancel（intr，CTRL+C）。