rsync and timestamps of local files

[Max Bowsher]

Haisam K. Ido wrote:
> Max Bowsher wrote:
>> Haisam K. Ido wrote:
>> 
>>> bob parker wrote:
>>> 
>>>> I think so. It compares the size and timestamp of your local file
>>>> with the remote one of the same name of course. If it all matches
>>>> nothing is done unless you force it.
>>> 
>>> If it does that then it is not doing what I'm asking about.
>>> 
>>> I need to know if it checks the local files relative to a local log
>>> file that it keeps of previous rsyncings. If it finds differences
>>> between the local file and the log file content will it then and
>>> only them perform a diff with the remote file with the same name?
>> 
>> 
>> There is no such log file.
> 
> Is'nt that inefficient for the network traffic?

Maybe. Depends on the usage scenario.

Max.