尝试read shell内置：

read -p "Continue (y/n)?" CONT
if [ "$CONT" = "y" ]; then
  echo "yaaa";
else
  echo "booo";
fi

这是我在其他地方找到的，有更好的版本吗？

read -p "Are you sure you wish to continue?"
if [ "$REPLY" != "yes" ]; then
   exit
fi

尝试read shell内置：

read -p "Continue (y/n)?" CONT
if [ "$CONT" = "y" ]; then
  echo "yaaa";
else
  echo "booo";
fi

echo are you sure?
read x
if [ "$x" = "yes" ]
then
  # do the dangerous stuff
fi

这样您就可以得到“y”、“yes”或“Enter”

 read -r -p "Are you sure? [Y/n]" response
 response=${response,,} # tolower
 if [[ $response =~ ^(y| ) ]] || [[ -z $response ]]; then
    your-action-here
 fi

如果您正在使用zsh，请尝试以下操作：

read "response?Are you sure ? [Y/n] "
response=${response:l} #tolower
if [[ $response =~ ^(y| ) ]] || [[ -z $response ]]; then
    your-action-here
fi

用例/esac。

read -p "Continue (y/n)?" choice
case "$choice" in 
  y|Y ) echo "yes";;
  n|N ) echo "no";;
  * ) echo "invalid";;
esac

优点：

更整洁的可以更容易地使用“OR”条件可以使用字符范围，例如[yY][eE][sS]来接受单词“yes”，其中任何字符都可以是小写或大写。