#!/bin/bash set -e [[ $XT_MULTI == *xtables-nft-multi ]] || { echo "skip $XT_MULTI"; exit 0; } comment1="foo bar" comment2="xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx" for ipt in iptables ip6tables; do for comment in "$comment1" "$comment2"; do $XT_MULTI $ipt -A INPUT -m comment --comment "$comment" -j ACCEPT $XT_MULTI $ipt -D INPUT -m comment --comment "$comment" -j ACCEPT done done