I think 

notmuch search --output=tags '*'

is what you want

Best wishes

Mark

On Thu, 15 Nov 2012, Christoph Rissner <cri@visotech.at> wrote:
> Hi,
>
> it's probably a stupid question, but is it possibly to query all
> available tags from the command line? Something like "notmuch show --tags"?
>
> I know there is notmuch_database_get_all_tags(), emacs shows a list of
> tags, in python it's just
> "list(notmuch.database.Database().get_all_tags())", but how do I do that
> using notmuch itself?
>
> BTW: I'm currently using notmuch from rev 84a0c52.
>
> Thanks,
> Christoph
>
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