This file is indexed.

preinst is in sendmail-bin 8.14.4-4.1ubuntu1.

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
#
# Debian pre install script
#
# Install of already installed package:
#   1) Upgrade of package:
#       new-preinst upgrade old-version
#       *) new-postrm abort-upgrade old-version
#   2) package had some configuration files from a previous version installed
#       new-preinst install old-version
#       *) new-postrm abort-install old-version
#   3) Otherwise (i.e., the package was completely purged)
#       new-preinst install
#       *) new-postrm abort-install
#
set -e;

PACKAGE=sendmail-bin;

# do we have debconf?
if [ -f /usr/share/debconf/confmodule ]; then
	DEBCONF=true;
	. /usr/share/debconf/confmodule;
else
	DEBCONF='';
	fi;

case "$1" in
    install)
		;;

    upgrade)
    	# DPKG doesn't overwrite directories with symlinks...
		rm -rf /usr/lib/sendmail 2>/dev/null || true;

		# Prevent cronjob from running during upgrade...
		if [ -f /etc/cron.d/sendmail ]; then
			echo "#preinst" > /etc/cron.d/sendmail;
			fi;
		;;

    abort-upgrade)
		;;

    *)
		echo "$PACKAGE preinst called with unknown argument \`$1'" >&2;
		exit 1;
		;;
    esac;


exit 0;