This file is indexed.

postinst is in libc-bin 2.23-0ubuntu3.

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
export LC_ALL=C

install_from_default() {
  if [ ! -f $2 ]; then
    cp -p $1 $2
  fi
}

if [ "$1" = "configure" ] && [ "$2" = "" ] ; then
  install_from_default /usr/share/libc-bin/nsswitch.conf /etc/nsswitch.conf
fi

if [ "$1" = "triggered" ] || [ "$1" = "configure" ]; then
  LDCONFIG_NOTRIGGER=y
  export LDCONFIG_NOTRIGGER
  ldconfig || ldconfig --verbose
  exit 0
fi



exit 0