postrm is in lubuntu-artwork 0.45.
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 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 | #!/bin/sh
# This script can be called in the following ways:
#
# After the package was removed:
#       <postrm> remove
#
# After the package was purged:
#       <postrm> purge
#
# After the package was upgraded:
#       <old-postrm> upgrade <new-version>
# if that fails:
#       <new-postrm> failed-upgrade <old-version>
#
#
# After all of the packages files have been replaced:
#       <postrm> disappear <overwriting-package> <version>
#
#
# If preinst fails during install:
#       <new-postrm> abort-install
#
# If preinst fails during upgrade of removed package:
#       <new-postrm> abort-install <old-version>
#
# If preinst fails during upgrade:
#       <new-postrm> abort-upgrade <old-version>
set -e
case "$1" in
    remove)
	if update-alternatives --query newt-palette | grep -qs "Value: /etc/newt/palette.original"; then
		update-alternatives --auto newt-palette
	fi
	;;
    purge)
	;;
    upgrade|failed-upgrade|disappear)
	;;
    abort-install|abort-upgrade)
	;;
    *)
	echo "$0 called with unknown argument \`$1'" 1>&2
	exit 1
	;;
esac
exit 0
 |