Generate a static back-of-a-book style index?

[Cameron Simpson]

On 08Jul2018 06:47, Tim Chase <python.list at tim.thechases.com> wrote:
>On 2018-07-08 13:34, Cameron Simpson wrote:
>> On 07Jul2018 21:57, Tim Chase <python.list at tim.thechases.com> wrote:
>> >On 2018-07-08 12:12, Cameron Simpson wrote:
>> >> On 07Jul2018 20:11, Skip Montanaro <skip.montanaro at gmail.com>
>> >> wrote:
>> >> >> Have you looked at the ptx command? Might be called "gptx"
>>
>> It's associated with the troff stuff generally. Maybe that's not
>> installed?
>
>On my OpenBSD (6.3) boxes, there's no nroff/troff/groff nor any
>ptx/gptx.
>
>On my FreeBSD (11.2) boxes, I have nroff/troff/groff available but no
>ptx/gptx available in base.  One of the machines has coreutils
>installed which provides /usr/local/bin/gptx (and its man-pages).
>
>So I can find it and read about it.  Just curious that it's fallen
>out of base on both Free & OpenBSD (don't have a NetBSD machine at
>hand to test that).

I'm curious too. I haven't an explaination.

Cheers,
Cameron Simpson <cs at cskk.id.au>