qemuconf=/etc/qemu/
post_install() {if[ !-d"$qemuconf"];thenmkdir"$qemuconf"fiecho"allow rasp-br0">>"$qemuconf"/bridge.conf
}
post_remove() {sed-i'/rasp-br0/d'"$qemuconf"/bridge.conf
echo"Please remember to remove$qemuconf/bridge.conf if not needed"}