#!/bin/sh set -e case "$1" in remove|upgrade|deconfigure) if getent passwd timetracker >/dev/null; then deluser --system timetracker fi if getent group timetracker >/dev/null; then delgroup --system timetracker fi ;; failed-upgrade) ;; *) echo "prerm called with unknown argument \`$1'" >&2 exit 1 ;; esac exit 0