Script for automatic creation and shutdown of a Wifi Access Point with 'create_ap'

createAccessPoint.sh

#!/usr/bin/env bash

# @Author: Horloge-Skynet
# @Created: 2016-11-21
# @Created: 2020-04-14
# @Brief: Script for automatic creation and shutdown of a Wifi Access Point with 'create_ap'


## Some Wifi parameters ##
SSID='SkyWifi'
PASSPHRASE='SkyPass'
INTERFACE='wlan0'
CHANNEL='1'
FREQUENCY='5'
COUNTRY_FLAG='FR'

## What time slot do you want ? (Here: from 6:30 AM to 10:30 PM) ##
TIME_START='0630'
TIME_STOP='2230'


## Let's get some information on the current system ##
current_time="$(date +%H%M)"
create_ap_lines_nb=$(create_ap --list-running | wc -l)

if [[ $((10#${current_time})) -gt $((10#${TIME_START})) && $((10#${current_time})) -lt $((10#${TIME_STOP})) ]]; then
	if [[ ${create_ap_lines_nb} -eq 2 ]]; then
		create_ap \
			${INTERFACE} ${INTERFACE} \
			${SSID} ${PASSPHRASE} \
			-c ${CHANNEL} \
			--freq-band ${FREQUENCY} \
			--country ${COUNTRY_FLAG} \
			--daemon > /dev/null 2>&1
		sleep 5
	fi

	list_devices="$(create_ap --list-clients ap0)"
	if [[ -n ${list_devices} && ${list_devices} != "No clients connected" ]]; then
		echo -e "${current_time} : ${list_devices}\\n" >> /root/wifiDevices.log
	fi
elif [[ ${create_ap_lines_nb} -gt 2 ]]; then
	create_ap --stop ap0 > /dev/null 2>&1
fi