postrm is in yaws-chat 2.0.4+dfsg-2.
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 | #! /bin/sh
# postrm script for yaws-chat
#
# see: dh_installdeb(1)
set -e
# summary of how this script can be called:
#        * <postrm> `remove'
#        * <postrm> `purge'
#        * <old-postrm> `upgrade' <new-version>
#        * <new-postrm> `failed-upgrade' <old-version>
#        * <new-postrm> `abort-install'
#        * <new-postrm> `abort-install' <old-version>
#        * <new-postrm> `abort-upgrade' <old-version>
#        * <disappearer's-postrm> `disappear' <overwriter> <new-version>
# for details, see /usr/doc/packaging-manual/
case "$1" in
    remove)
	# Remove config symlink, which was created in postinst script
	f=yaws-chat.conf
	if [ -h /etc/yaws/conf.d/$f ] && (! readlink -e /etc/yaws/conf.d/$f || \
		 [ "`readlink /etc/yaws/conf.d/$f`" = "../conf.avail/$f" ]) ; then
	    rm /etc/yaws/conf.d/$f
	fi
	# Reload yaws configuration (for yet unknown reason,
	# invoke-rc.d yaws reload doesn't work here, so restart).
	if [ -x "/etc/init.d/yaws" ]; then
	    if [ -x "`which invoke-rc.d 2>/dev/null`" ]; then
		invoke-rc.d yaws restart || exit $?
	    else
		/etc/init.d/yaws restart || exit $?
	    fi
	fi
    ;;
    purge|upgrade|failed-upgrade|abort-install|abort-upgrade|disappear)
    ;;
    *)
        echo "postrm called with unknown argument \`$1'" >&2
        exit 0
    ;;
esac
# dh_installdeb will replace this with shell code automatically
# generated by other debhelper scripts.
exit 0
 |