Fibonacci Series generator [Shell Program]

echo "Enter the Number of Terms"

read n

a=0

b=1

count=1

n1=`expr $n - 2`

if [ $n -eq 1 ]

then

echo "The
Fibonacci series is:"$a

elif [ $n -eq 2 ]

then

echo "The
Fibonacci series is:"$a $b

else

echo "The
Fibonacci series is:"

echo "$a $b
\c"

while [ $count -le $n1 ]

do

c=`expr $a + $b`

echo "$c \c"

a=$b

b=$c

count=`expr $count +
1`

done

fi

echo "\n"