This file is indexed.

postinst is in libsss-sudo 1.16.1-1ubuntu1.

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

set -e

case "$1" in
    configure)
        ldconfig
    ;;

    abort-upgrade|abort-remove|abort-deconfigure)
    ;;

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



# This code was taken from libnss-myhostname, which got it from nss-mdns:

log() {
    echo "$*"
}

# try to insert sss entries to the sudoers line in /etc/nsswitch.conf to
# automatically enable libsss-sudo support; do not change the configuration
# if the lines already references some sss lookups
insert_nss_entry() {
    log "Checking NSS setup..."
    # abort if /etc/nsswitch.conf does not exist
    if ! [ -e /etc/nsswitch.conf ]; then
        log "Could not find /etc/nsswitch.conf."
        return
    fi

    if grep -q ^sudoers /etc/nsswitch.conf; then
        # append 'sss' to the end of the line if it's not found already
        sed -i --regexp-extended '
          /^(sudoers):/ {
            /\bsss\b/! s/$/ sss/
          }
        ' /etc/nsswitch.conf
    else
        echo "sudoers:        files sss" >> /etc/nsswitch.conf
    fi
}

insert_nss_entry


exit 0