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GPG-CONNECT-AGENT(1)           GNU Privacy Guard          GPG-CONNECT-AGENT(1)

       gpg-connect-agent - Communicate with a running agent

       gpg-connect-agent [options][commands]

       The  gpg-connect-agent  is a utility to communicate with a running gpg-
       agent.  It is useful to check out the commands gpg-agent provides using
       the  Assuan  interface.   It  might also be useful for scripting simple
       applications.  Input is expected at stdin and out put gets  printed  to

       It  is  very  similar  to running gpg-agent in server mode; but here we
       connect to a running instance.

       The following options may be used:


              Output additional information while running.


              Try to be as quiet as possible.

       --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


       --raw-socket name
              Connect  to socket name assuming this is an Assuan style server.
              Do not run any special initializations  or  environment  checks.
              This  may be used to directly connect to any Assuan style socket


       --exec Take the rest of the command line as a program  and  it's  argu-
              ments  and execute it as an assuan server. Here is how you would
              run gpgsm:
          gpg-connect-agent --exec gpgsm --server
       Note that you may not use options on the command line in this case.

              When using -S  or  --exec,  gpg-connect-agent  connects  to  the
              assuan  server  in  extended  mode  to allow descriptor passing.
              This option makes it use the old mode.

       --run file
              Run the commands from file at startup and then continue with the
              regular  input method.  Note, that commands given on the command
              line are executed after this file.


              Run the command /subst at startup.

       --hex  Print data lines in a hex format and the ASCII representation of
              non-control characters.

              Decode  data  lines.  That is to remove percent escapes but make
              sure that a new line always starts with a D and a space.

       While reading Assuan commands, gpg-agent also allows a few special com-
       mands  to control its operation.  These control commands all start with
       a slash (/).

       /echo args
              Just print args.

       /let name value
              Set the variable name to value.  Variables are only  substituted
              on  the input if the /subst has been used.  Variables are refer-
              enced by prefixing the name with a dollar  sign  and  optionally
              include  the  name  in curly braces.  The rules for a valid name
              are identically to those of the standard bourne shell.  This  is
              not yet enforced but may be in the future.  When used with curly
              braces no leading or trailing white space is allowed.

              If a variable is not found, it is searched  in  the  environment
              and if found copied to the table of variables.

              Variable  functions are available: The name of the function must
              be followed by at least one space and the at least one argument.
              The following functions are available:

              get    Return  a  value  described  by  the argument.  Available
                     arguments are:

                      cwd    The current working directory.

                             The gnupg homedir.

                             GnuPG's system configuration directory.

                      bindir GnuPG's binary directory.

                      libdir GnuPG's library directory.

                             GnuPG's library directory for executable files.

                             GnuPG's data directory.

                             The PID of the current server. Command /serverpid
                             must have been given to return a useful value.

              unescape args
                     Remove  C-style escapes from args.  Note that \0 and \x00
                     terminate the returned string implicitly.  The string  to
                     be  converted  are  the entire arguments right behind the
                     delimiting space of the function name.

              unpercent args

              unpercent+ args
                     Remove percent style escaping from args.  Note  that  %00
                     terminates  the string implicitly.  The string to be con-
                     verted are the entire arguments right behind the delimit-
                     ing space of the function name. unpercent+ also maps plus
                     signs to a spaces.

              percent args

              percent+ args
                     Escape the args  using  percent  style  escaping.   Tabs,
                     formfeeds,  linefeeds,  carriage  returns  and colons are
                     escaped. percent+ also maps spaces to plus signs.

              errcode arg

              errsource arg

              errstring arg
                     Assume arg is an integer and evaluate  it  using  strtol.
                     Return  the  gpg-error error code, error source or a for-
                     matted string with the error code and error source.





              %      Evaluate all arguments as long integers using strtol  and
                     apply  this operator.  A division by zero yields an empty



              &      Evaluate all arguments as long integers using strtol  and
                     apply  the  logical  oeprators  NOT,  OR or AND.  The NOT
                     operator works on the last argument only.

       /definq name var
              Use content of the variable var for inquiries with  name.   name
              may be an asterisk (*) to match any inquiry.

       /definqfile name file
              Use  content  of  file  for inquiries with name.  name may be an
              asterisk (*) to match any inquiry.

       /definqprog name prog
              Run prog for inquiries matching name and pass the entire line to
              it as command line arguments.

       /datafile name
              Write all data lines from the server to the file name.  The file
              is opened for writing and created if it  does  not  exists.   An
              existing  file is first truncated to 0.  The data written to the
              file fully decoded.  Using a single dash for name writes to std-
              out.   The  file is kept open until a new file is set using this
              command or this command is used without an argument.

              Print all definitions

              Delete all definitions

       /sendfd file mode
              Open file in mode (which needs to be a valid fopen mode  string)
              and  send  the  file  descriptor to the server.  This is usually
              followed by a command like INPUT FD to set the input source  for
              other commands.

              Not yet implemented.

       /open var file [mode]
              Open  file and assign the file descriptor to var.  Warning: This
              command is experimental and might change in future versions.

       /close fd
              Close the file descriptor fd.  Warning: This command is  experi-
              mental and might change in future versions.

              Show a list of open files.

              Send  the Assuan command GETINFO pid to the server and store the
              returned PID for internal purposes.

       /sleep Sleep for a second.


       /nohex Same as the command line option --hex.


              Same as the command line option --decode.


              Enable and disable variable substitution.  It defaults  to  dis-
              abled  unless the command line option --subst has been used.  If
              /subst as been enabled once, leading whitespace is removed  from
              input lines which makes scripts easier to read.

       /while condition

       /end   These  commands  provide  a  way for executing loops.  All lines
              between the while and the corresponding end are executed as long
              as  the  evaluation  of  condition yields a non-zero value.  The
              evaluation is done by passing condition to the strtol  function.

           /let i 3
           /while $i
             /echo loop couter is $i
             /let i ${- $i 1}

       /run file
              Run commands from file.

       /bye   Terminate the connection and the program

       /help  Print a list of available control commands.

       gpg-agent(1), scdaemon(1)

       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

         info gnupg

       should  give  you access to the complete manual including a menu struc-
       ture and an index.

GnuPG 2.0.15                      2010-07-28              GPG-CONNECT-AGENT(1)

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