OpenWRT WiFi channel checker

testch.sh

#!/bin/sh

CURRENT=$(uci get wireless.radio0.channel)
HOST=$(echo $SSH_CONNECTION | awk '{print $1}') # host to ping

echo "Initial channel: $CURRENT"

set_channel()
{
	uci set wireless.radio0.channel=$1
	uci commit
	wifi
	echo "Channel $1"
}

ping_test()
{
	ping -q -c 30 $HOST | grep round-trip
}

for CHANNEL in $(seq 1 11)
do
	set_channel $CHANNEL
	ping_test
done

set_channel $CURRENT