This is the backup script designed to run every week on tachyon.

weekly-backup

#!/bin/sh
if [ ! $UID = 0 ]; then
    echo -e '\e[31merror: this script needs to be run as root'
    exit 1
else
    # echo each command before executing to show progress
    set -o xtrace
    dd if=/dev/disk/by-label/win8 | gzip -c > /mnt/data0/Backup/win8.ntfs.gz
    umount /mnt/arch-backup
    dd if=/dev/disk/by-label/arch-backup | gzip -c > /mnt/data0/Backup/arch-backup.ext4.gz
    mount /mnt/arch-backup
    if mount | grep -q /mnt/data0-backup; then
        rsync -aAX --delete /mnt/data0/ /mnt/data0-backup 
    fi
fi