Fácil de configurar e após o término envia o log por e-mail.

Como instalar:

Copie o arquivo sendEmail para /usr/local/bin:

# cp sendEmail /usr/local/bin

Adicione permissão de execução:

# chmod +x /usr/local/bin/sendEmail
# chmod +x backup_rsync.sh

Agora basta ajustar o backup_rsync.sh e adicionar no cron com a periodicidade desejada.
No download já existe tanto o backup_rsync.sh quanto o sendEmail.

O sendEmail foi escrito por: Brandon Zehm <caspian[at]dotconf.net>.

License:
sendEmail (hereafter referred to as "program") is free software;
you can redistribute it and/or modify it under the terms of the GNU General
Public License as published by the Free Software Foundation; either version
2 of the License, or (at your option) any later version.
When redistributing modified versions of this source code it is recommended
that that this disclaimer and the above coder's names are included in the
modified code.

Espero que seja útil.

Daniel Padovani