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Linux 2.6 - man page for gpgv (linux section 1)

GPGV(1) 				GNU Privacy Guard				  GPGV(1)

       gpgv - Verify OpenPGP signatures

       gpgv [options] signed_files

       gpgv is an OpenPGP signature verification tool.

       This program is actually a stripped-down version of gpg which is only able to check signa-
       tures. It is somewhat smaller than the fully-blown gpg and uses a different (and  simpler)
       way  to check that the public keys used to make the signature are valid. There are no con-
       figuration files and only a few options are implemented.

       gpgv assumes that all keys in the keyring are trustworthy.  By default it uses  a  keyring
       named  `trustedkeys.gpg'  which is assumed to be in the home directory as defined by GnuPG
       or set by an option or an environment variable. An option may be used to  specify  another
       keyring or even multiple keyrings.

       The  program  returns  0  if  everything is fine, 1 if at least one signature was bad, and
       other error codes for fatal errors.

       gpgv recognizes these options:


       -v     Gives more information during processing. If used twice, the input data  is  listed
	      in detail.


       -q     Try to be as quiet as possible.

       --keyring file
	      Add  file  to the list of keyrings.  If file begins with a tilde and a slash, these
	      are replaced by the HOME directory. If the filename does not contain a slash, it is
	      assumed to be in the home-directory ("~/.gnupg" if --homedir is not used).

       --status-fd n
	      Write special status strings to the file descriptor n.  See the file DETAILS in the
	      documentation for a listing of them.

       --logger-fd n
	      Write log output to file descriptor n and not to stderr.

	      GnuPG normally checks that the timestamps associated with keys and signatures  have
	      plausible values. However, sometimes a signature seems to be older than the key due
	      to clock problems. This option turns these checks into warnings.

       --homedir dir
	      Set the name of the home directory to dir. If this option is  not  used,	the  home
	      directory  defaults to `~/.gnupg'.  It is only recognized when given on the command
	      line.  It also overrides any home directory stated through the environment variable
	      `GNUPGHOME'  or  (on  W32  systems)  by  means  of  the  Registry  entry HKCU\Soft-

       gpgv pgpfile

       gpgv sigfile [datafile]
	      Verify the signature of the file. The second form is used for detached  signatures,
	      where  sigfile  is  the  detached  signature  (either  ASCII-armored or binary) and
	      datafile contains the signed data; if datafile is "-" the signed data  is  expected
	      on  stdin; if datafile is not given the name of the file holding the signed data is
	      constructed by cutting off the extension (".asc", ".sig" or ".sign") from sigfile.

	      The default keyring with the allowed keys.

       HOME   Used to locate the default home directory.

	      If set directory used instead of "~/.gnupg".


       The full documentation for this tool is maintained as a Texinfo manual.	If GnuPG and  the
       info program are properly installed at your site, the command

	 info gnupg

       should give you access to the complete manual including a menu structure and an index.

GnuPG 1.4.11				    2013-01-08					  GPGV(1)

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