First commit of the bash file.

telegram_monitor_0.2.sh

@@ -0,0 +1,18 @@
+#!/bin/bash
+
+service="docker run --rm"											# INSERT the command that started the service to be monitored
+bot_text="ETH Node running on machine \"gutalax1\" just stopped."	# Text that will be sent to the BOT
+chat_id="194833572"													# User ID or group ID where the message will be sent
+BOT_api_token="194833572:XXXXXXxxxxxxxxxxxxxXXXXXXX"				# The API Token of the BOT that will deliver the message
+
+while node=$(pgrep -f "$service") >/dev/null						# checks if service has started
+do																	# if YES stay here forever
+	clear															# clean the terminal
+	echo "Node is running with PID=$node"							# and print a message
+done																# if NOT
+	echo -e "\n\t\tNode stopped\n"									# print messages
+	echo -e "Sending Telegram message...\n"
+
+# And send a curl request with a message to a telegram BOT
+curl -s -X POST https://api.telegram.org/bot$BOT_api_token/sendMessage -d chat_id=$chat_id -d text="$bot_text"
+echo