Re: [tlug] Run rsync based on time difference between local file and server file

[Raymond Wan <rwan.kyoto@example.com>]

Hi Charles,


On 2011-11-11 16:52, Charles Muller wrote:
> I usually synchronize my various machines via my server, manually
> starting an rsync routine on startup or shutdown of Linux.
>
> I was thinking that I might be able to automate this by having a script
> that compares the time stamps of a designated file on the server with a
> designated local file, and then depending on if there is a difference,
> and if so, which way, the appropriate rsync routine would start up.

I was previously syncing two computers via a SSD hard disk 
using Unison (actually, Unison-GTK since I'm too lazy to use 
command line :-P ) and it seemed to always get things 
correct.  Now, one of those computers is gone, but back 
then, it would get it right even if I was sloppy and edited 
a different file in both computers.  I guess it was 
calculating some kind of key on each file.
Behind the scenes, Unison uses rsync.  Also, I just looked 
at the manpages of unison and it supports syncing between 
two hosts.  [I have never used it this way.]
You might want to look into it to see if it fits your needs. 
 Of course, you will have to set exclusions on each side 
[such as gnome/kde settings that are specific to a 
particular computer].
Though I have no complaints, I welcome other alternatives if 
you can think of any.  Please let me know if you find 
something better!
Ray