How can I force y/n answer in bash?

abefroman · 09-16-2013, 05:01 PM

For example this code:

Code:

echo "Do you live in the US? (y/n)";
read confirm
if [ '$confirm' == 'y' ];then
  echo "In US";
fi
if [ '$confirm' == 'n' ];then
  echo "Outside US";
fi

How can I get it to keep looping and asking the question again if no answer is entered?

TIA

suicidaleggroll · 09-16-2013, 05:07 PM

Just put it in a while loop

Code:

validans=0
while [[ $validans -eq 0 ]]; do
  echo "Do you live in the US? (y/n)"
  read confirm
  if [ "$confirm" == "y" ]; then
    echo "In US"
    validans=1
  fi
  if [ "$confirm" == "n" ]; then
    echo "Outside US"
    validans=1
  fi
done

abefroman · 09-16-2013, 05:29 PM

That worked, thanks.