This is a legacy script. Modern application should use the per component global configuration files under /etc/gnupg/.
This script is a wrapper around
gpgconf to run it with the
--apply-defaults for all real users with an existing
GnuPG home directory. Admins might want to use this script to update he
GnuPG configuration files for all users after
/etc/gnupg/gpgconf.conf has been changed. This allows enforcing
certain policies for all users. Note, that this is not a bulletproof way to
force a user to use certain options. A user may always directly edit
the configuration files and bypass gpgconf.
applygnupgdefaults is invoked by root as: