Judging by your list of scripts, it appears that you have some homework for a...
Judging by your list of scripts, it appears that you have some homework for a class. With that being the case we should not write the scripts for you, but guide you to documentation.
You can find a guide to bash scripting at http://www.faqs.org/docs/Linux-HOWTO/Bash-Prog-Intro-HOWTO.html and you can use cron to schedule the events, a guide to using cron is at http://www.d9x.net/linux/guides/crons.php
Please notify us if you need assistance find command to locate specific tasks.