postrm is in zentyal-printers 2.3.3.
This file is a maintainer script. It is executed when installing (*inst) or removing (*rm) the package.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 | #!/bin/bash
set -e
case "$1" in
purge)
# purge configuration
/usr/share/zentyal/purge-module printers
;;
remove)
dpkg-trigger --no-await zentyal-core
;;
esac
exit 0
|