#!/bin/bash

for i in $(seq 1 5)
do
   echo $i;
done

for ((i=0;i<5;i++))
do
   echo $i;
done

counter=5
factorial=1
while [ $counter -gt 0 ]
do
   factorial=$(( $factorial * $counter ))
   counter=$(( $counter - 1 ))
done
echo $factorial
