#!/bin/sh
# Simple alarm which uses BEEP to echo beeps to the terminal when system
# time is equal to the first parameter (ie, usage: alarm <hh:mm>)
# by Ken P Chasse, but anyone who puts their name on this is asking for alot. :)

while true
do
  a=`date | cut -c12-16`

  echo now $a, ring @ $1

  if [ $a = $1 ]; then
    while true; do
      beep > /dev/tty0 &
    done
  fi

# can sleep close to a minute, but dont want to miss the check in case
# the system doesnt let alarm run for 15 seconds in heavy loads

        sleep 19
done