#!/bin/bash RULESET="add table x add set x y { type ipv4_addr; size 128; timeout 30s; } add chain x test add rule x test set update ip saddr timeout 1d2h3m4s8ms @y add rule x test set update ip daddr timeout 100ms @y" set -e $NFT -f - <<< "$RULESET" $NFT list chain x test | grep -q 'update @y { ip saddr timeout 1d2h3m4s8ms }' $NFT list chain x test | grep -q 'update @y { ip daddr timeout 100ms }'