This file is indexed.

postinst is in menu 2.1.47ubuntu1.

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

# Package maintainers, DO NOT use this as an example for how to
# call update-menus in your postinst! This script does several things
# you shouldn't do, and doesn't do other things that you should
# do. See /usr/share/doc/menu/ for more info.

case "$1" in
triggered)
	# This is triggered by any installation of a menu file and by
	# any call to update-menus made in a package maintainer script.
        test -x /usr/bin/update-menus && update-menus --trigger
        exit 0
;;
*)
	chmod a+x /usr/bin/update-menus
	update-menus
;;
esac