postrm is in nut-server 2.6.3-1ubuntu1.1.
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 55 56 57 58 | #!/bin/sh -e
case "$1" in
  remove)
    # remove sample file if those were previously (wrongly) installed
    for file in ups.conf upsd.conf upsmon.conf upsd.users upssched.conf ; do
      rm -f /etc/nut/${file}.sample
    done
    ;;
  purge)
    # remove udev rules files
    rm -f /etc/udev/rules.d/025_nut-usbups.rules
    rm -f /etc/udev/rules.d/52_nut-usbups.rules
    rm -f /etc/udev/rules.d/52-nut-usbups.rules
    # remove the nut user
    if [ -x "$(command -v deluser)" ]; then
       deluser --quiet --system nut > /dev/null || true
    else
       echo >&2 "not removing nut system account because deluser command was not found"
    fi
    # handle a dpkg bug
    [ -d /etc/nut ] && rmdir --ignore-fail-on-non-empty /etc/nut >/dev/null 2>&1
    ;;
  upgrade)
    # do nothing
    ;;
  failed-upgrade)
    # do nothing
    ;;
  abort-install)
    # do nothing
    ;;
  abort-upgrade)
    # do nothing
    ;;
  disappear)
    # do nothing
    ;;
  *)
    echo "$0: incorrect arguments: $*" >&2
    exit 1
    ;;
esac
# Automatically added by dh_installinit
if [ "$1" = "purge" ] ; then
	update-rc.d nut remove >/dev/null
fi
# End automatically added section
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