This file is indexed.

preinst is in courier-mta 0.78.0-2ubuntu2.

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

if [ "$1" = "install" ]; then
    dpkg-divert --package courier-mta --add --rename \
		--divert /usr/bin/addcr.ucspi-tcp /usr/bin/addcr
    dpkg-divert --package courier-mta --add --rename \
		--divert /usr/share/man/man1/addcr.ucspi-tcp.1.gz /usr/share/man/man1/addcr.1.gz
fi



exit 0