Unix Shell Programming Example for B.Sc, B.Tech, BCA, MCA

 10. Check strong number.

PROGRAM:

echo "Enter the number:"

read n

fact=1

if [ $n -eq 0 ]

then

    echo "fact = "1

else

   

        for i in `seq 1 $n`

        do

            fact=`expr $fact \* $i`

        done

        echo "fact = $fact"

fi

OUTPUT:

[bgc@localhost ~]$ sh 11.sh

Enter a number:

145

145 is a strong number

[bgc@localhost ~]$ sh 11.sh

Enter a number:

2

2 is a strong number

[bgc@localhost ~]$ sh 11.sh

Enter a number:

23

23 is not a strong number

[bgc@localhost ~]$