function create_ssh_key()
{
if [ -f ./${RSA_KEY_FILE_NAME} ]; then
read -p "RSA key already exist! Do you want to remove it (yYnN)?" -n 1 -r
function create_ssh_key()
{
if [ -f ./${RSA_KEY_FILE_NAME} ]; then
read -p "RSA key already exist! Do you want to remove it (yYnN)?" -n 1 -r