Add tentative whoall parser + hostname file

hostnames

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+abe
+actarus
+crash
+duke
+elwood
+gex
+gin
+glados
+jake
+king
+kirk
+lara
+link
+martini
+picard
+pang
+pong
+q
+raziel
+sarek
+snake
+sonic
+spock
+spyro
+tron
+worf
+yoshi
+zombie
+jacobi
+yukawa
+tesla

telegrambot_whoallparser.sh

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+#!/bin/bash
+## Alessandro De Gennaro, 2020-01-16
+## Parse whoall output in machine-readable format for LCM Telegram bot.
+
+NODELIST=$(<hostnames)
+WHOALL_OUTPUT=$(whoall -fn)
+
+for node in $NODELIST
+do
+	WHOALL_NODE_ITERATION=$(echo "$WHOALL_OUTPUT" | grep -w "$node")
+	
+	if [[ $WHOALL_NODE_ITERATION == Empty:* ]]; then
+		echo $node
+	else
+		echo $WHOALL_NODE_ITERATION
+	fi
+done