How to do array operation in busybox

[Sven-Göran Bergh]

Hi Patrik


On 06/26/2015 07:49 AM, Pratik Prajapati wrote:
> Hi,
>
> I am working on LTP-DDT project (https://github.com/rogerq/ltp-ddt)
> which i cross-compiled for my target and my target uses busybox. But
> running it on my target gives me error as array operation is not
> supported in busybox.
>
> I have attached script with this mail.
>
> I am getting error for :
>
> sh: /opt/ltp/testcases/bin/ddt/common/common.sh: line 305: syntax error:
> bad substitution
>
> I tried this:
>
> |305: shift
> 306: index=0
> 307: for  arg;
> 308: do
> 309:   x[$index]=$arg
> 310:   ((index++))
> 311: done
>
> |
>
> |but i got error:|  syntax error: unexpected "(" (expecting "}")
>
> Also couldn't found any solution on google.
>
> How to make it work on busybox. Please help.

Arrays is a bash feature, it is not supported by ash or standard
shells. So unfortunately the short answer is that it does not work.
However there are often ways to rework a script to avoid arrays.

Brgds
/S-G


> Thanks,
>
> Pratik
>
>
>
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