#!/bin/bash
function choiseLanguage ( )
{
while [ 1 ]; do
echo "中文，請輸入\"zh\"";
echo "Please type \"en\" for English";
read read_str;
case "$read_str" in
  en)
        ln -sf ./install_lang.en ./install_lang
	echo "You choise English! 死洋鬼子A"
        break;
        ;;
  zh)
        ln -sf ./install_lang.zh ./install_lang
	echo "你選擇了中文"
        break;
        ;;
  *)
        echo "中文，請輸入\"zh\"";
        echo "Please type \"en\" for English";
esac
done
}

choiseLanguage