Incremental backup

Shell Programming and Scripting
1

Hi,

I would like to create a daily incremental backup of a directory with all of the files within and add a timestamp (year-month-day) to the tar.gz file.

I have the following, but it doesn't backup the inside files of the directory.

#!/bin/bash
tar -czf /home/username/Desktop/test`date+%Y%m%d`.tar.gz /home/username/Desktop/directory

Does this replaces the last tar.gz with the new one each day? Also, if errors presented I would like those to go to a .out file in /tmp

Thanks in advance for your handy help!
Regards,

2

If 'directory' is a directory, follow it with a /
To capture errors, redirect STDERR by adding "2> /tmp/blah.out" to the end of the command (bourne compatible shells).