Simple shell script to forward logs to a Telegram bot.

telegram_log_sender.sh

#!/bin/bash

## Credit: admin@Shellhacks
## Article URL: https://www.shellhacks.com/telegram-api-send-message-personal-notification-bot/

## Define Vars
token=  #Telegram bot API token
chatID= #Telegram Chat ID
sendURL="https://api.telegram.org/bot$token/sendMessage"
logFile="/var/log/auth.log"

## Tail logs and send to telegram bot.
function sendLog {
	tail -fn0 $logFile | \
	while read line; do
		echo "$line"
		if [ $? = 0 ]
		then
			curl -s -X POST $sendURL -d chat_id=$chatID -d text="$line"
		fi
	done
}

sendLog