Bash Shell-Fibonacci Series

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Simple Bash Shell-Fibonacci Series


if [ $# -eq 1 ]
then
    Num=$1
else
    echo -n "Enter a Number :"
    read Num
fi

f1=0
f2=1

echo "The Fibonacci is : "

for (( i=0;i<=Num;i++ ))
do
     echo -n "$f1 "
     fn=$((f1+f2))
     f1=$f2
     f2=$fn
done


echo

Output
Enter a Number :5
The Fibonacci is :0 1 1 2 3

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