bash conditions1

#!/usr/bin/env bash

WAITF=${1:-50};

for i in $(seq 1 1 $WAITF);
do
    echo -n "#";
done

for i in $(seq 1 1 $WAITF);
do
    echo -en "\b \b";
    sleep 0.1s;
done

echo -e "\rBang!!!";

exit 0;