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From: Alexander Kapshuk <alexander.kapshuk@gmail.com>
Date: Thu, 26 Apr 2018 18:29:00 +0300
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To: Fans of the OS Plan 9 from Bell Labs <9fans@9fans.net>
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Subject: Re: [9fans] simple rc problem in p9p (on OpenBSD)
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On Thu, Apr 26, 2018 at 6:08 PM, Rudolf Sykora <rudolf.sykora@gmail.com> wrote:
> On 26 April 2018 at 16:54, Lucio De Re <lucio.dere@gmail.com> wrote:
>> w=(A B C)
>>
>> ?
>
> 1) this is not an answer
> 2) the use of it all was that I wanted to send to print
> certain files, the list of which I got from ls followed
> by manual deletion (in 9term) of some... Newline separation
> is thus natural.
>
> Thanks anyway
> Ruda
>

You could initialise $w to hold a list of files output by ls like so:
% w=`{ls}
% echo $#w
40

Is this what you had in mind?