multiple_alarms.sh

#!/bin/bash
read -p"How many alarms?" count
for c in $(seq 1 $count); do
  read -p"What time are you setting alarm #${c} for? " date
  echo "Okay, will ring you on $(date --date="$date")."
  # Create a subshell and background it
  (
    sleep $(( $(date --date="$date" +%s) - $(date +%s) ));
    echo 'Wake up!' #or whatever action you want to take
  )&
done