This file is indexed.

prerm is in upgrade-system 1.7.3.0.

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
set -e
# Automatically added by dh_installdeb
dpkg-maintscript-helper mv_conffile /etc/cron.daily/apt-update /etc/cron.daily/upgrade-system 1.4.2.1 upgrade-system -- "$@"
# End automatically added section