Re: sorting uniquely by message-id

[Ralph Corderoy]

Hi,

Wolfgang wrote:
> > The pick man page doesn't present this quite as clearly as it could,
> > but when it refers to "--component", "component" means "any header
> > field name".  So I think what you want is:  "pick --message-id .*".
> > (The double hyphen is important.)
>
> Indeed, this fixes the problem (of course we have to escape the '.*'
> tp prevent the shell from expanding it).

My suggestion used ‘--message-id 'z*'’.  Its approach uses MH sequences,
each a fast set implemented using a bitmap, with a loop iterating for
each distinct message-ID field.

    https://lists.nongnu.org/archive/html/nmh-workers/2020-09/msg00008.html

-- 
Cheers, Ralph.