#! /usr/bin/bash

while ! dnf -y system-upgrade download --refresh --releasever=31
do
    read -t 30 -p "Continue? (y/n) " reply
    if (($?>128)); then
	echo "timed out, continuing..."
    elif [[ "$reply" =~ [Nn] ]]; then
	echo "Exiting..."
	exit
    else
	echo "Continuing..."
    fi
done