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Old 02-08-2017, 04:25 PM   #1
genogebot
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Distribution: Xubuntu 16.04.1 / Linux Mint 18 XFCE / Linux Mint 18 Mate / Ubuntu Server 16.04.1 / Lubuntu 16.04.1
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Question gpg2: documented '--output' option is not accepted


I'm using gpg2 in Xubuntu 16.04:
Code:
gpg2 --version
gpg (GnuPG) 2.1.11
libgcrypt 1.6.5
The man page for gpg2 and the online manual (http://manpages.ubuntu.com/manpages/...n1/gpg2.1.html) as well as the command 'gpg2 --help' all clearly indicate that the option '--output' can be used to export a key to a specified file:
Code:
--export-secret-keys

--export-secret-subkeys
      Same as --export, but exports the secret keys instead.
      The exported keys are written to STDOUT or to the file given with option --output.
When I do so in a terminal, however:
Code:
gpg2 --export-secret-keys somewhere@gmail.com --output somewhere.secret.gpg
I get a message
Code:
gpg: Note: '--output' is not considered an option
and the output is sent to STDOUT. I can, of course, redirect STDOUT to a file, but I don't understand why the '--output' option isn't available when every document I can find says it should be.
 
Old 02-08-2017, 05:16 PM   #2
genogebot
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RTFM

I stumbled over the solution to this one myself.

I assumed that the gpg2 commandline parsing would be intelligent enough to process gpg-specific 'options' and 'commands' in any order, but it seems that is not the case.

In the general introductory blurb of the gpg2 man page, I found:
Code:
Please remember that option as well as command parsing stops as soon as a non-option is encountered
'--output' is an option, and '--export-secret-keys' is a command, so the correct terminal command should have been:
Code:
gpg2 --output somewhere.secret.gpg --export-secret-keys somewhere@gmail.com
Doh!

In my defence, though, the error message was misleading in suggesting that '--output' is not an option - it would have been more accurate to report that options are not processed after commands.

Last edited by genogebot; 02-08-2017 at 05:19 PM.
 
Old 02-08-2017, 05:27 PM   #3
Habitual
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find is particular "that way" also.

Good job and well done.
 
  


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