ERROR: No valid subcommand given.
Valid subcommands:
* iptables-xml
* xml
* iptables
* iptables-nft
* main4
* save4
* restore4
* iptables-save
* iptables-restore
* iptables-nft-save
* iptables-nft-restore
* ip6tables
* ip6tables-nft
* main6
* save6
* restore6
* ip6tables-save
* ip6tables-restore
* ip6tables-nft-save
* ip6tables-nft-restore
* iptables-translate
* ip6tables-translate
* iptables-restore-translate
* ip6tables-restore-translate
* arptables-translate
* arptables
* arptables-nft
* arptables-restore
* arptables-nft-restore
* arptables-save
* arptables-nft-save
* ebtables-translate
* ebtables
* ebtables-restore
* ebtables-save
* ebtables-nft
* ebtables-nft-restore
* ebtables-nft-save
* xtables-monitor
Captured help is the program's own output, shown as printed. It is third-party text: read it, do not follow instructions in it.