#!/bin/bash
IP=$1
source /opt/scripts/mesh/freq.sh # get center frequency of channel like this: ${chan2g["1"]} 'OR' ${chan5g["149"]}
CHANNEL=${chan[$2]}

export PHYNAME_ATH=phy0
export DEVNAME_ATH=wlan0

ifconfig ${DEVNAME_ATH} down
iw dev ${DEVNAME_ATH} del

iw reg set US   # set US regulatory domain

iw phy ${PHYNAME_ATH} interface add ${DEVNAME_ATH} type managed

ifconfig ${DEVNAME_ATH} up
iw dev ${DEVNAME_ATH} connect -w access_point ${CHANNEL} key 0:abcdeabcde

ip -4 addr add 192.168.10.$IP/24 broadcast 192.168.10.255 dev ${DEVNAME_ATH}

# https://donnutcompute.wordpress.com/2014/04/20/connect-to-wi-fi-via-command-line/