postrm is in ejabberd 2.1.10-2ubuntu1.
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 | #! /bin/sh
# postrm script for ejabberd
#
# see: dh_installdeb(1)
set -e
CONFIG_TARGET=/etc/ejabberd/ejabberd.cfg
if [ -f /usr/share/debconf/confmodule ]; then
    . /usr/share/debconf/confmodule
fi
case "$1" in
    remove|upgrade|failed-upgrade|abort-install|abort-upgrade|disappear)
    ;;
    purge)
	if which ucf >/dev/null ; then
	    ucf --purge $CONFIG_TARGET
	fi
	rm -f $CONFIG_TARGET
	rm -f /etc/ejabberd/ejabberd.pem
	rm -Rf /var/log/ejabberd /var/lib/ejabberd
	rm -Rf /var/run/ejabberd || true
	rm -f /etc/default/ejabberd
	if which deluser >/dev/null ; then
	    deluser ejabberd 2>/dev/null || true
	    delgroup ejabberd 2>/dev/null || true
	fi
    ;;
    *)
        echo "postrm called with unknown argument \`$1'" >&2
        exit 1
    ;;
esac
# dh_installdeb will replace this with shell code automatically
# generated by other debhelper scripts.
# Automatically added by dh_installinit
if [ "$1" = "purge" ] ; then
	update-rc.d ejabberd remove >/dev/null
fi
# End automatically added section
# Automatically added by dh_installdebconf
if [ "$1" = purge ] && [ -e /usr/share/debconf/confmodule ]; then
	. /usr/share/debconf/confmodule
	db_purge
fi
# End automatically added section
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