Re: [Help-bash] Is there a quick way to compute the ratio of two bash arrays using bc?

[Geir Hauge]

On Sat, Aug 08, 2015 at 03:56:59PM -0500, 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?

Iterate the indices of one of the arrays:

    r=()
    for i in "address@hidden"; do
        r[i]=$(bc -l <<< "${x[i]}/${y[i]}")
    done

-- 
Geir Hauge