A simple command-line python utility that compresses a directory (or directories) and excludes certain unwanted files.
Bash Script: Incremental Encrypted Backups with Duplicity (Amazon S3)
This bash script was designed to automate and simplify the remote backup process of duplicity on Amazon S3. After your script is configured, you can easily backup, restore, verify and clean (either via cron or manually) your data without having to remember lots of different command options and passphrases.
Most importantly, you can easily backup the script and your gpg key in a convenient passphrase-encrypted file. This comes in in handy if/when your machine ever does go belly up.