concrete5 Site Zip Backups

#!/bin/sh
#
# Backup a concrete5 site into 2 archives (excluding the core)
#  A zip for files and a zip for everything else)
#
# John Steele - http://www.steelesoftconsulting.com/
#
# Change these 3 to reflect your environment:

DIR=c5dev
C5="$HOME/c5dev"
BACKDIR="$HOME/backup"

mkdir -p $BACKDIR       # creates it if it doesn't exist yet
cd $C5

NICE="$(which nice)"
ZIP="$(which zip)"

DATE=`date +%F`         # DATE=`date +%m-%d-%y`
FARC="$BACKDIR/$DIR"_files_"$DATE".zip
CARC="$BACKDIR/$DIR"_dir_"$DATE.zip"

        # some cleanup
rm -f files/cache/tmp/*
rm -f files/cache/zend_cache*
rm -f $FARC
rm -f $CARC

        # create the zip archive of files/ (with exclusions)
$NICE $ZIP -qyr $FARC files \
  -x "files/cache/*" "files/tmp/*" "files/trash/*" \
  -x "files/backups/*"          # you may want to comment this line

cd ..
        # archive the rest
$NICE $ZIP -qyr $CARC $DIR \
  -x "$DIR/concrete/*" "$DIR/files/*"

        # optional, change permissions to only owner
chmod go-rw $FARC $CARC