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

 6. Print fibonacci series.

PROGRAM:

echo "enter number of elements of the fibonacci series:"

read n

a=0

b=1

if [ $n -eq 0 ]

then

    echo "no elemnts"

else

    if [ $n -eq 1 ]

    then

        echo 0

    else

        echo 0

        echo 1

        c=2

        while [ $c -ne $n ]

        do

            d=`expr $a + $b`

            echo $d   

            a=$b

            b=$d

            c=`expr $c + 1`

        done

    fi

fi

OUTPUT:

[bgc@localhost ~]$ sh 7.sh

enter number of elements of the fibonacci series:

6

0

1

1

2

3

5

[bgc@localhost ~]$