Script for logging IP and signal/noise

Installing and Using OpenWrt
1

Hello,
I am looking for simple way to write log of signal strength of few or all devices connected to router every 30 second/1 min. Is it possible without much load on system ?

I have below command-

ubus call hostapd.wlan1 get_clients

This gives me lot of information but how do I make this command run every time and generate/overwrite log every 30 mins ?

2

I'm not super familiar with that command but you could try something like this: (If you want the log file to be overwritten instead of append the logs then change line 9 ">>" to ">")

#!/bin.sh
## CONFIG
log_file="/var/logs/client_log.txt" # log file location
interval_minutes=30 # 30 minutes

### START OF SCRIPT

while true; do
    ubus call hostapd.wlan1 get_clients >> "$log_file"
    sleep "$interval_minutes"m
done &

### END OF SCRIPT