[Shell] Bash read, if then fi

#!/usr/bin/env bash

pwd

echo "Are you sure current directory? (Y/N)"
read answer

if [ "$answer" == "y" ] || [ "$answer" == "Y" ]
then
  echo "Yes!!"
fi

echo "done!!"

#!/usr/bin/env bash

pwd

echo "Are you sure current directory? (Y/N)"
read ans
answer=`echo $ans| tr a-z A-Z`

if [ "$answer" == "Y" ]
then
  echo "Yes!!"
fi

echo "done!!"