doc: Show how to list envvars send to gpg-agent.

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GnuPG-bug: 3353
Signed-off-by: Werner Koch <wk@gnupg.org>
(cherry picked from commit 53bbac0865)
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Werner Koch 2018-08-29 09:53:06 +02:00
parent a59a9962f4
commit 3169b5ae3f
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@ -3610,6 +3610,15 @@ Operation is further controlled by a few environment variables:
@end table
When calling the gpg-agent component @command{@gpgname} sends a set of
environment variables to gpg-agent. The names of these variables can
be listed using the command:
@example
gpg-connect-agent 'getinfo std_env_names' /bye | awk '$1=="D" @{print $2@}'
@end example
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