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gnupg: Agent Signals

 
 2.4 Use of some signals
 =======================
 
 A running 'gpg-agent' may be controlled by signals, i.e.  using the
 'kill' command to send a signal to the process.
 
    Here is a list of supported signals:
 
 'SIGHUP'
      This signal flushes all cached passphrases and if the program has
      been started with a configuration file, the configuration file is
      read again.  Only certain options are honored: 'quiet', 'verbose',
      'debug', 'debug-all', 'debug-level', 'debug-pinentry', 'no-grab',
      'pinentry-program', 'pinentry-invisible-char', 'default-cache-ttl',
      'max-cache-ttl', 'ignore-cache-for-signing', 's2k-count',
      'no-allow-external-cache', 'allow-emacs-pinentry',
      'no-allow-mark-trusted', 'disable-scdaemon', and
      'disable-check-own-socket'.  'scdaemon-program' is also supported
      but due to the current implementation, which calls the scdaemon
      only once, it is not of much use unless you manually kill the
      scdaemon.
 
 'SIGTERM'
      Shuts down the process but waits until all current requests are
      fulfilled.  If the process has received 3 of these signals and
      requests are still pending, a shutdown is forced.
 
 'SIGINT'
      Shuts down the process immediately.
 
 'SIGUSR1'
      Dump internal information to the log file.
 
 'SIGUSR2'
      This signal is used for internal purposes.
 

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