echo "Enter number:"
read num
echo "Enter file:"
read file
fib[0]=1
fib[1]=1
f=2
#echo ${fib[@]}
#n=$num-2
while [ $f -lt $num ]
do
        fib[f]=$((fib[$f-1]+fib[$f-2]))
        #echo ${fib[f]}
        f=$((f+1))
        #echo "$f"
done
echo ${fib[@]} | cat > $file.txt
cat $file.txt