#!/bin/bash

ADDR="Your Email Address"
FILE="Your Calender file"

TODAY=$(date +%Y-%m-%d)

if ( grep "^$TODAY" "${FILE}" > /dev/null )
then
	grep "^$TODAY" "${FILE}" | \
	mail -a "From: ${ADDR}" \
	-a "Content-type: text/plain; charset=UTF-8" \
	-s Appointment "${ADDR}"
fi