This file is indexed.

prerm is in policyrcd-script-zg2 0.1-2.

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.

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#!/bin/bash

set -e

if [ "$1" != "upgrade" ]; then
  update-alternatives --remove policy-rc.d /usr/sbin/zg-policy-rc.d
fi
  
exit 0