An old favorite for backing up is
rsync. One big reason for this is because
rsync enables you to copy only those files that have changed since the last backup. So although the initial backup might take a long time, subsequent backups are much faster. It is also highly configurable and can be used with removable media such as USB hard drives or over a network. Here is one way to use
First, create an empty file and call it
matthew@seymour:~$ sudo touch backup.sh
Then, using your favorite text editor, enter the following command into the file and save it:
sudo rsync --force --ignore-errors --delete --delete-excluded --exclude-from=/home/matthew-exclude.txt --backup --backup-dir=`date +%Y-%m-%d` -av //media/externaldrive/backup/Seymour ...