gistfile1.txt

#!/bin/bash
inside_interface='wlan0'

rules() {
	while IFS= read -r line; do
		eval set -- $line
		echo "iptables ${@}"
		echo "$# $@"
		#iptables ${line[@]}
	done << EOF
-P FORWARD DROP
-P INPUT DROP
-P OUTPUT DROP
-N allowed-connection
-F allowed-connection
-A allowed-connection -m conntrack --ctstate ESTABLISHED,RELATED -j ACCEPT
-A allowed-connection -i ${inside_interface} -m limit -j LOG --log-prefix "Bad packet from ${inside_interface}:"
-F
-X
-L
EOF
}

_ARGS=( "$@" )

rules

set -- "${ARGS[@]}"