my zoneminder daily archival cron job

#!/bin/sh
# AAAGH! wtf do I mean with /bin/ls here, that's crackpot.
#######################################################################
# Add to your daily cron jobs
#
# It runs and archives zoneminder camera images that are 8 days old
#
# It's not too clever - change the destination location to get it to
# write to a remote location (this is using a local USB drive at the
# moment, a networked drive might make even more sense.
#
# Change the source locations too to reflect your cameras!  All these
# should eventually be parametrised.
#
# Suggested save-place for this:
#     /var/cache/zoneminder/archival/archiver
#
# cjjm 17-Aug-2014

####################
# shunt the days around
rm /var/cache/zoneminder/archival/day0
mv /var/cache/zoneminder/archival/day1 /var/cache/zoneminder/archival/day0
mv /var/cache/zoneminder/archival/day2 /var/cache/zoneminder/archival/day1
mv /var/cache/zoneminder/archival/day3 /var/cache/zoneminder/archival/day2
mv /var/cache/zoneminder/archival/day4 /var/cache/zoneminder/archival/day3
mv /var/cache/zoneminder/archival/day5 /var/cache/zoneminder/archival/day4
mv /var/cache/zoneminder/archival/day6 /var/cache/zoneminder/archival/day5
mv /var/cache/zoneminder/archival/day7 /var/cache/zoneminder/archival/day6
mv /var/cache/zoneminder/archival/day8 /var/cache/zoneminder/archival/day7

####################
# output a new day8 (as 'now')
echo \#\!/bin/sh > /var/cache/zoneminder/archival/day8
echo ZMARC_YEAR2CHAR="$(date +%y)" >> /var/cache/zoneminder/archival/day8
echo ZMARC_YEAR4CHAR="$(date +%Y)" >> /var/cache/zoneminder/archival/day8
echo ZMARC_MONTH="$(date +%m)" >> /var/cache/zoneminder/archival/day8
echo ZMARC_DAY="$(date +%d)" >> /var/cache/zoneminder/archival/day8
chmod ugo+rwx /var/cache/zoneminder/archival/day8

####################
# call new day0
source /var/cache/zoneminder/archival/day0

####################
# folder creation (don't care if exist already, let the errors flow off-screen)
mkdir /media/chrism/Media_02/cameras/zoneminder/Porch\ \(2\)/$ZMARC_YEAR4CHAR
mkdir /media/chrism/Media_02/cameras/zoneminder/Porch\ \(2\)/$ZMARC_YEAR4CHAR/$ZMARC_MONTH
mkdir /media/chrism/Media_02/cameras/zoneminder/Rear\ \(3\)/$ZMARC_YEAR4CHAR
mkdir /media/chrism/Media_02/cameras/zoneminder/Rear\ \(3\)/$ZMARC_YEAR4CHAR/$ZMARC_MONTH

####################
# do some archiving - straight to the usb drive (this might need to change)
cd /var/cache/zoneminder/events/2/$ZMARC_YEAR2CHAR/$ZMARC_MONTH
tar cvfz /media/chrism/Media_02/cameras/zoneminder/Porch\ \(2\)/$ZMARC_YEAR4CHAR/$ZMARC_MONTH/camera2_$ZMARC_YEAR4CHAR-$ZMARC_MONTH-$ZMARC_DAY.tar.gz $ZMARC_DAY/

cd /var/cache/zoneminder/events/3/$ZMARC_YEAR2CHAR/$ZMARC_MONTH
tar cvfz /media/chrism/Media_02/cameras/zoneminder/Rear\ \(3\)/$ZMARC_YEAR4CHAR/$ZMARC_MONTH/camera3_$ZMARC_YEAR4CHAR-$ZMARC_MONTH-$ZMARC_DAY.tar.gz $ZMARC_DAY/

####################
# do some deleting - camera 2 (Porch)
rm -rf /var/cache/zoneminder/events/2/$ZMARC_YEAR2CHAR/$ZMARC_MONTH/$ZMARC_DAY/*
rm /var/cache/zoneminder/events/2/$ZMARC_YEAR2CHAR/$ZMARC_MONTH/$ZMARC_DAY/.?
rm /var/cache/zoneminder/events/2/$ZMARC_YEAR2CHAR/$ZMARC_MONTH/$ZMARC_DAY/.??
rm /var/cache/zoneminder/events/2/$ZMARC_YEAR2CHAR/$ZMARC_MONTH/$ZMARC_DAY/.???
rm /var/cache/zoneminder/events/2/$ZMARC_YEAR2CHAR/$ZMARC_MONTH/$ZMARC_DAY/.????
rm /var/cache/zoneminder/events/2/$ZMARC_YEAR2CHAR/$ZMARC_MONTH/$ZMARC_DAY/.?????
rm /var/cache/zoneminder/events/2/$ZMARC_YEAR2CHAR/$ZMARC_MONTH/$ZMARC_DAY/.??????

# at this point the 'day' folder should be empty... delete it...
rmdir /var/cache/zoneminder/events/2/$ZMARC_YEAR2CHAR/$ZMARC_MONTH/$ZMARC_DAY

# do some deleting - camera 3 (Rear)
rm -rf /var/cache/zoneminder/events/3/$ZMARC_YEAR2CHAR/$ZMARC_MONTH/$ZMARC_DAY/*
rm /var/cache/zoneminder/events/3/$ZMARC_YEAR2CHAR/$ZMARC_MONTH/$ZMARC_DAY/.?
rm /var/cache/zoneminder/events/3/$ZMARC_YEAR2CHAR/$ZMARC_MONTH/$ZMARC_DAY/.??
rm /var/cache/zoneminder/events/3/$ZMARC_YEAR2CHAR/$ZMARC_MONTH/$ZMARC_DAY/.???
rm /var/cache/zoneminder/events/3/$ZMARC_YEAR2CHAR/$ZMARC_MONTH/$ZMARC_DAY/.????
rm /var/cache/zoneminder/events/3/$ZMARC_YEAR2CHAR/$ZMARC_MONTH/$ZMARC_DAY/.?????
rm /var/cache/zoneminder/events/3/$ZMARC_YEAR2CHAR/$ZMARC_MONTH/$ZMARC_DAY/.??????

# at this point the 'day' folder should be empty... delete it...
rmdir /var/cache/zoneminder/events/3/$ZMARC_YEAR2CHAR/$ZMARC_MONTH/$ZMARC_DAY

####################
# and we're done...