This file is indexed.

postinst is in bash-static 4.4.18-2ubuntu1.

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" = configure ] && dpkg --compare-versions "$2" le 3.2-4 \
    && which add-shell >/dev/null
then
    add-shell /bin/bash-static
fi



exit 0