Shell script to find the factorial of a number.

Factoirial B

#!/bin/bash

#Script to print the factorial of a number

echo "\nThis is a script to find the factorial of a number"

declare -i count result
echo "Enter a number : "
read num

count=$num
result=1

while [ "$count" != "0"  ]; do
result=result*count
count=count-1
done

echo "factirial is $result"

exit 0