Find out the Square of a Number > Unix Shell Programming

Match String by taking User Input

Code:

clear

echo -n "Enter the Number==> "
read n

i=1

if test $n -ge 0
then
	if test $n -eq 0
	then
		echo "You have to enter a number greater than zero."
	else
		while test $i -le $n
		do
			v=`expr $i \* $i`
			echo "Square of "$i "is = "$v
			i=`expr $i + 1`
		done
	fi
else
	echo "Program can't accept negative value."
fi

Output:

Enter the Number==> 6

Square of 6 is = 36

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