A bash script to multiple accounts with Telegram GNU/Linux

multiTelegram.sh

#!/bin/bash

# Usage:
# $ ./multiTelegram myUSERNAME

TELEGRAM_BIN="/usr/bin/telegram-desktop"
TELEGRAM_DIR_RAW=$HOME"/.multiTelegram"

if [ ! -z $1 ]
then
	WORKDIR="$TELEGRAM_DIR_RAW/$1"
	echo "Launching instance $1 with working directory $WORKDIR"
	if [ ! -d $WORKDIR ]
	then
		echo "Working directory $WORKDIR does not exist and will be created before start."
		mkdir -p $WORKDIR
	fi
	$TELEGRAM_BIN -many -workdir "$WORKDIR"
else
	echo "Launching default Telegram instance"
	$TELEGRAM_BIN
fi

telegramdesktop.example

[Desktop Entry]

Version=1.0
Name=Telegram @${USERNAME}
Comment=Official desktop application for the Telegram messaging service
TryExec=${TELEGRAM_BIN}
Exec=${TELEGRAM_BIN} -workdir ${WORKDIR} -- %u
Icon=telegram
Terminal=false
StartupWMClass=TelegramDesktop
Type=Application
Categories=Network;InstantMessaging;Qt;
MimeType=x-scheme-handler/tg;
Keywords=tg;chat;im;messaging;messenger;sms;tdesktop;
X-GNOME-UsesNotifications=true
X-Desktop-File-Install-Version=0.23