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
}

我为回答是/否问题编写了一个小脚本：https://github.com/optimistiCli/getans

例子：

#!/bin/bash

if ! getans.sh 'Shall we proceed?' y ; then
    echo "User said “NO”"
    exit 1
fi

echo "User said “YES”"
# do something usefull
exit 0

直接链接：https://github.com/optimistiCli/getans/raw/main/getans.sh

您可以编写一个函数来测试：

confirm() {
  local ans IFS=;
  while read -rp "$1" -n1 ans;
  do printf '\n';
    case $ans in [Yy]) return 0;;
      [Nn]) return 1;;
    esac;
  done;
}; ## Usage: if confirm "Are you sure? "; then ...

if confirm "Does everything look ok...reboot now? [Y/n]"; then
  echo "rebooting..."
  sleep 5
  reboot
fi

echo "Please enter some input: "
read input_variable
echo "You entered: $input_variable"

read -e -p "Enter your choice: " choice

-e选项允许用户使用箭头键编辑输入。

如果要使用建议作为输入：

read -e -i "yes" -p "Enter your choice: " choice

-i选项打印提示性输入。

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