hi,

I need a script for take backup only modified files in directory.

Scenario is:

Test
|-- hr
| `--user1
| `--1.txt
|-- it
| `--it1
| `--2.txt
|-- pa
| `--pa1
| `--3.txt

How to take backup by rsync only modified file in other system.

I use the --delete option in my own backup/to/USB script to keep things consistent.
If you don't use --delete then any files deleted under /path/to/Test (the source) will remain in the /path/to/storage (destination)
on subsequent runs of rsync.

What "other system" is that reference to?
some examples - http://www.thegeekstuff.com/2010/09/...mand-examples/
the basics - http://aplawrence.com/Basics/rsync.html

yeah i use the following arugments in my rsync backup script:

man rsync for details on those options.

Thanks for response.

I've ran the script but output not showing in another folder...

i've ran following script but it's not creating date folder in output place.
( script will be run daily basis on system so i need it create date folder in output dir and take backup only updated file)

#rsync -aviS --backup-dir=`date +%d-%m-%Y` /test 192.168.0.230:/mnt/abc

you still need to provide the full path.

you are better off if you wish to create a folder to create it BEFORE running the rsync command in your script with something like this:

now that is how i create and verify that my log folder is were i want it. if its not there then it will make it. you can do the same thing with date, just create your variables and substitute in what needs be adjusting.

That is not the way --backup-dir works. It does not specify the destination directory (which I think you are calling your "backup"). It specifies a directory to save files that would be changed or deleted by rsync on the destination directory. I'll write more on that later.

Edit: Sorry, I mis-read your rsync command (didn't see a space), so what I wrote below (now red) is incorrect:

If you wish to transfer files from /test 192.168.0.230:/mnt/abc to `date +%d-%m-%Y`, the appropriate command might be:

Code:

rsync -aviS /test 192.168.0.230:/mnt/abc `date +%d-%m-%Y`

This is what I should have written:

Your command looks okay to transfer files from /test to 192.168.0.230:/mnt/abc, but the --backup-dir switch will not do anything unless you also use --backup, like so:

Code:

rsync -aviS --backup --backup-dir=`date +%d-%m-%Y` /test 192.168.0.230:/mnt/abc

Now I will show an example of how --backup-dir works. By the way, all this is in the rsync manual. If the manual is not sufficiently clear, you can experiment with the rsync command on a small directory to figure out how it works.

I have a directory called "a" which I intend to transfer to a directory called "b".

Also I will use the --delete switch, so that files deleted from the source directory will be deleted by rsync on the destination directory. Some people call this mirroring; after running rsync with --delete, the destination directory will reflect all changes to the source directory, including any deletions that may have occurred since the last rsync.
Now I will delete one file and repeat the rsync command:
You see that it deleted b/x. Let's delete another file and use the --backup and --backup-dir options. Please note, --backup-dir without --backup does nothing.
Now you see that the file b/y has been moved to the backup directory b/c.