FIBONACCI SERIES ---- unix lab

FIBONACCI SERIES

AIM:

To write a Shell Program to print the Fibonacci series.

ALGORITHM:

Step 1: Start

Step 2: Read the Value of ‘n’

Step 3: Initialize i=2; a=0; b=1.

Step 4: Print the Value of ‘a’ and ‘b’

Step 5: When ‘i’ is lesser than ‘n’, solve the expression c=a+b

Step 6: Print c

Step 7: Swap the Values of ‘b’ to ‘a’ and ‘c’ to ‘b’

Step 8:  Solve the expression “i=i+1”

Step 9: Stop.

SHELL PROGRAM:

echo "Enter the Limit"

read n

i=2

echo "Fibonacci Series"

echo "----------------"

a=0

b=1

echo $a

echo $b

while [ $i -lt $n ]

do

c=`expr $a + $b`

echo $c

a=$b

b=$c

i=`expr $i + 1`

done

SAMPLE OUTPUT:

Enter the Limit

8

Fibonacci Series

----------------

0

1

1

2

3

5

8

13

RESULT:

            Thus the Shell Program to print the Fibonacci Series was executed and the output was verified.