read -p "you are sure you wang to xxxxxx?[y/n]" input
echo $input
if [ $input = "y" ];then
echo "ok "
fi
read -p "you are sure you wang to xxxxxx?[y/n]" input
echo $input
if [ $input = "y" ];then
echo "ok "
fi
道可道,非常道;名可名,非常名。 无名,天地之始,有名,万物之母。 故常无欲,以观其妙,常有欲,以观其徼。 此两者,同出而异名,同谓之玄,玄之又玄,众妙之门。