postrm is in wmaker 0.95.0+20111028-4.
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 | #!/bin/sh
set -e
case "$1" in
  remove)
    if [ -x /usr/bin/update-menus ] ; then
      update-menus
    fi
  ;;
  purge|upgrade|abort-install|disappear)
    # nothing to do
  ;;
  failed-upgrade)
    # this is an upgrade, and it has failed. What can fail?
    exit 1
  ;;
  abort-upgrade)
    # preinst failed, leave things like they were
  ;;
  *)
    echo "postrm called with unknown argument \`$1'" >&2
    exit 1
  ;;
esac
exit 0
 |