Re: [Help-bash] Is there a quick way to compute the ratio of two bash arrays using bc?for n in "address@hidden"

[Chris F.A. Johnson]

On Sat, 8 Aug 2015, Peng Yu wrote:

> Hi, I'd like to compute the ratios of two bash arrays. When there are
> just 2 elements in each array, I simply do the following as it is the
> quickest to type.
>
> r=(
> $(bc -l <<< ${x[0]}/${y[0]})
> $(bc -l <<< ${x[1]}/${y[1]})
> )
>
> When there are more elements, does anybody has a better way to do it?

for n in "address@hidden"
do
  printf "%s/%s\n" "${x[n]}" "${y[n]}" 
done | bc -l

--
Chris F.A. Johnson, <http://cfajohnson.com>