Run gpgconf --apply-defaults for all users.
applygnupgdefaults
This script is a wrapper around gpgconf to run it with the command --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 \(oq/etc/gnupg/gpgconf.conf\(cq has been changed. This allows to enforce certain policies for all users. Note, that this is not a bulletproof of forcing a user to use certain options. A user may always directly edit the configuration files and bypass gpgconf.
applygnupgdefaults is invoked by root as:
applygnupgdefaults