This file is indexed.

postrm is in perl-modules 5.18.2-2ubuntu1.

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.

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#!/bin/sh -e

# /etc/perl/Net/libnet.cfg mistakenly installed as /etc/Net in perl 5.8
if [ "$1" = remove ] && [ -f /etc/Net ] && which md5sum > /dev/null &&
   [ "$(md5sum /etc/Net)" = "fb2946cae573b8ed3d654a180d458733  /etc/Net" ]
then
    rm -f /etc/Net
fi

exit 0