> Yes, it is a simple change, but where is pipe/popen2 used? Should we
> take these usages into account or just rest on the position that lists
> are deprecated and get rid of them? If we get rid of them should we use
> a cell array or or something else? In this case it might be better to
> just use two return values as there are only two elements in the lists.
> There is no point doing the work, if John doesn't like the solution and
> won't accept the code, so better that he makes some statement...
Agree.
Note however that popen2 does not return a list. The last patch I posted
on the list is compatible with the m-version, so it doesn't require any
change in user's code. This is not the same for "pipe".