gpg-agent(1) on Linux
The text 3b543a2eb51c, as Debian 10 (Buster) shipped it.
Secret key management for GnuPG
Flags it lists
-
--allow-emacs-pinentry -
--allow-loopback-pinentry -
--allow-preset-passphrase -
--auto-expand-secmem -
--batch -
--check-passphrase-pattern -
--csh -
--debug -
--debug-all -
--debug-level -
--debug-pinentry -
--debug-quick-random -
--debug-wait -
--default-cache-ttl -
--default-cache-ttl-ssh -
--disable-check-own-socket -
--disable-scdaemon -
--display -
--dump-options -
--enable-extended-key-format -
--enable-passphrase-history -
--enable-putty-support -
--enable-ssh-support -
--enforce-passphrase-constraints -
--extra-socket -
--faked-system-time -
--grab -
--help -
--homedir -
--ignore-cache-for-signing -
--keep-display -
--keep-tty -
--lc-ctype -
--lc-messages -
--listen-backlog -
--log-file -
--max-cache-ttl -
--max-cache-ttl-ssh -
--max-passphrase-days -
--min-passphrase-len -
--min-passphrase-nonalpha -
--no-allow-external-cache -
--no-allow-loopback-pinentry -
--no-allow-mark-trusted -
--no-detach -
--no-grab -
--no-use-standard-socket -
--options -
--pinentry-invisible-char -
--pinentry-program -
--pinentry-timeout -
--pinentry-touch-file -
--quiet -
--s2k-calibration -
--s2k-count -
--scdaemon-program -
--server -
--sh -
--ssh-fingerprint-digest -
--supervised -
--ttyname -
--ttytype -
--use-standard-socket -
--use-standard-socket-p -
--verbose -
--version -
--xauthority -
-c -
-h -
-q -
-s -
-v