This file is indexed.

prerm is in libpam-mount 2.14-1.

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

# pam-auth-update --remove removes the named profile from the active
# config.  It arguably should be called during deconfigure as well,
# but deconfigure can happen in some cases during a dist-upgrade and
# we don't want to deconfigure all PAM modules in the middle of a
# dist-upgrade by accident.
#
# More importantly, with the current implementation, --remove also
# removes all local preferences for the named config (such as whether
# it's enabled or disabled), which we don't want to do on deconfigure.
# This may need to change later as pam-auth-update evolves.

if [ "$1" = "remove" ] ; then
    pam-auth-update --package --remove libpam-mount
fi