dpkg-trigger --version (return code: 0)
Debian dpkg-trigger package trigger utility version 1.18.4 (amd64).
This is free software; see the GNU General Public License version 2 or
later for copying conditions. There is NO warranty.
dpkg-trigger --help (return code: 0)
Usage: dpkg-trigger [<options> ...] <trigger-name>
dpkg-trigger [<options> ...] <command>
Commands:
--check-supported Check if the running dpkg supports triggers.
-?, --help Show this help message.
--version Show the version.
Options:
--admindir=<directory> Use <directory> instead of /var/lib/dpkg.
--by-package=<package> Override trigger awaiter (normally set
by dpkg).
--await Package needs to await the processing.
--no-await No package needs to await the processing.
--no-act Just test - don't actually change anything.