This file is indexed.

prerm is in w3m 0.5.3-26build1.

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 -e
#

case "$1" in
    remove|deconfigure)
        update-alternatives --quiet --remove pager /usr/bin/w3m
	update-alternatives --quiet --remove www-browser /usr/bin/w3m
        ;;
    *)
esac