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

 9. Check if a number is prime fibonacci.

PROGRAM:

echo "enter the ending range of the series:"

read n

a=0

b=1

d=0

echo "The series is:"

if [ $n -le 2 ]

then

    echo "null"

else

    while [ $d -le $n ]

    do

        d=`expr $a + $b`

        c=0

        e=1

        while [ $e -le $d ]

        do

            if [ `expr $d \% $e` -eq 0 ]

            then

                c=`expr $c + 1`

            fi

            e=`expr $e + 1`

        done

        if [ $c -eq 2 ]

        then

            if [ $d -le $n ]

            then

                echo $d

            fi

        fi

        a=$b

        b=$d

    done

fi

OUTPUT:

[bgc@localhost ~]$ sh 10.sh

enter the ending range of the series:

100

The series is:

2

3

5

13

89

[bgc@localhost ~]$