This file is indexed.

preinst is in linux-wlan-ng 0.2.9+dfsg-5.

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


rm_conffile()
{
    CONFFILE="$1"

    if [ -e "$CONFFILE" ]; then
        md5sum=`md5sum "$CONFFILE" | cut -d ' ' -f 1`
	old_md5sum=`dpkg-query -W -f='${Conffiles}' linux-wlan-ng | grep $CONFFILE | cut -d ' ' -f 3`
        if [ "$md5sum" != "$old_md5sum" ]; then
            echo "Obsolete conffile $CONFFILE has been modified by you, renaming to .dpkg-bak"
            mv -f "$CONFFILE" "$CONFFILE".dpkg-bak
	else
            echo "Removing obsolete conffile $CONFFILE"
	    rm -f "$CONFFILE"
        fi
    fi
}

# Uncomment when debian completely drops #HOTPLUG#
if [ "$1" = install -o "$1" = upgrade ]; then
    if dpkg --compare-versions "$2" lt "0.2.8+svn1839+dfsg-2"; then
	rm_conffile /etc/hotplug/wlan.agent
    fi
fi

# The old modutils file could be there
if [ "$1" = install -o "$1" = upgrade ]; then
    if dpkg --compare-versions "$2" lt "0.2.8+svn1839+dfsg-3"; then
	rm_conffile /etc/modutils/linux-wlan-ng
    fi
fi

# udev rules have moved to /lib/udev
if [ "$1" = install -o "$1" = upgrade ]; then
    if dpkg --compare-versions "$2" lt "0.2.9+dfsg-3"; then
	rm_conffile /etc/udev/rules.d/84-linux-wlan-ng.rules
    fi
fi