Specify UID for --sign-key

[Muri Nicanor]

hi dkg and list,

On 02/26/2016 03:49 AM, Daniel Kahn Gillmor wrote:
[...]
> On Thu 2016-02-25 18:59:53 +0100, Muri Nicanor <muri+gnupg-users at immerda.ch> wrote:
>> is it possible to specifiy the uid for --sign-key (so i don't have to go
>> through the gpg --edit dialog)? i tried using
[...]
> In GnuPG 2.1:
> 
>        --quick-sign-key fpr [names]
> 
>        --quick-lsign-key fpr [names]
>               Directly sign a key from the passphrase without any further user
>               interaction.  The fpr must be the verified  primary  fingerprint
>               of a key in the local keyring. If no names are given, all useful
>               user ids are signed; with given [names]  only  useful  user  ids
>               matching  one  of theses names are signed.  The command --quick-
>               lsign-key marks the signatures as  non-exportable.   If  such  a
>               non-exportable  signature  already  exists  the --quick-sign-key
>               turns it into a exportable signature.
> 
>               This command uses reasonable defaults and thus does not  provide
>               the  full  flexibility of the "sign" subcommand from --edit-key.
>               Its intended use is to help unattended key signing by  utilizing
>               a list of verified fingerprints.

thanks a lot!
are these reasonable defaults whats explained in the first paragraph or
is there more to it? in particular i'm interested in the cert-expire
option- i tried to use --quick-sign-key with --default-cert-expire 1y,
but then i didn't find a way to review the expiry date of the signature
(is there a switch to see the expiry date of signatures?)

thanks and cheers,
muri