/* fact.sh */
echo "enter any number"
read num
i=1
fact=1
while [ $i -lt $num ]
do
fact=`expr $fact * $i`
i=`expr $i + 1`
done
echo "factorial of a given number is " $fact
/home/anil/~$ sh fact.sh
enter any number
5
factorial of a given number is 120
echo "enter any number"
read num
i=1
fact=1
while [ $i -lt $num ]
do
fact=`expr $fact * $i`
i=`expr $i + 1`
done
echo "factorial of a given number is " $fact
/home/anil/~$ sh fact.sh
enter any number
5
factorial of a given number is 120
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