#!/bin/bash

set -e

tmpfile=$(mktemp)
if [ ! -w $tmpfile ] ; then
        echo "Failed to create tmp file" >&2
        exit 0
fi

trap "rm -rf $tmpfile" EXIT # cleanup if aborted

RULESET="add table x
add chain x y
delete chain x y
delete chain x y"

echo "$RULESET" > $tmpfile
$NFT -f $tmpfile
echo "E: allowing double-removal of chain" >&2