#!/bin/sh NAME=rtl8821cu VERSION=5.4.1 set -e case "$1" in remove|upgrade|deconfigure) if [ "`dkms status -m $NAME`" ]; then dkms remove -m $NAME -v $VERSION --all fi ;; failed-upgrade) ;; *) echo "prerm called with unknown argument \`$1'" >&2 exit 1 ;; esac exit 0