#!/bin/bash

echo "<<--------MENU----------->>"
echo "We will do a factorial"
echo "Enter the number"
 read num
 echo "You entred " $num
 fact()      #Function to calculate factorial of the given number
    {
        if  (num -eq 0)
            then
        echo "1"
        elif (num -lt 0)
        then
        echo "Negative number can not be factorialed"
        else
        return fact*fact (n-1)
        fi
          }

        fact $num

        echo "The result is :" $fact(num)