This file is indexed.

postinst is in initramfs-tools-core 0.122ubuntu8.14.

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 [ ! -e /etc/initramfs-tools/modules ]; then
	sed '/^###/d' /usr/share/initramfs-tools/modules \
		> /etc/initramfs-tools/modules
fi