mv command behavior

[Les Mikesell]

Peter Lauri wrote:
>> I would suggest rsync for this task.  You could use it to sync
>> /tmp/dirA/dirB with /dirC/dirB, deleting files not in /tmp/dirA/dirB
>> from /dirC/dirB something like this:
>>
>> $ rsync -av --delete /tmp/dirA/dirB/ /dirC/dirB/
>>
>> The trailing slashes are significant, so check out the rsync man page
>> for more details.
>>
> 
> [Peter Lauri - DWS Asia] 
> 
> Hi,
> 
> But I just want to perform a simple move. This will perform a copy of the
> files, and remove files in /dirC/dirB that should still be there.
> 
> After the copy of the file is completed, the file in the SOURCE should be
> deleted. But --delete will delete files from the DESTINATION that are not in
> SOURCE, so the complete opposite of what I want :)
> 
> I assume I have to write my own script for this that copies FILE BY FILE and
> checks if it was copied correctly, and then delete it from the tmp dir.

Rsync will do the copy - and it does it in such a way that incomplete 
copies don't show up.  After an rsync run your script can just get the 
list of files from the destination directory and remove them from the 
source - unless the source directory is concurrently updated with new 
files of the same name.

-- 
   Les Mikesell
    lesmikesell at gmail.com