I use the following command to synchronize two folders :
rsync -avhiu --progress --stats folder1/ folder2/
But unfortunately I have a bunch of file which differ only by their time stamps and rsync does the transfer of the whole file only to modify the time ...
The man page of rsync says the following :
sending only the differences between the source files and the existing files in the destination
So I assume I do something in the wrong way. How can I make rsync copy only the time (when it is the only attribute changing of course) ?