debconf-apt-progress(1) on Linux
The text c0b1aa99eaf7, as Debian 9 (Stretch) shipped it.
install packages using debconf to display a progress bar
Flags it lists
-
-- -
--config -
--dlwaypoint -
--from -
--logfile -
--logstderr -
--no-progress -
--start -
--stop -
--to