#!/bin/sh

ask_if_continue () {
	while true; do
		# Prompt
		echo "Continue? (y/N)"
		read yesno

		# To lower case.
		yesno=`echo $yesno | tr [A-Z] [a-z]`

		# Break on valid only.
		if [ "$yesno" = "y" ]; then
			# It's yes.
			echo "Yes"
			break
		elif [ "$yesno" = "n" ]; then
			# It's no.
			echo "No"
			return
		fi
	done
}