On Fri, Aug 21, 2026 at 10:09:27AM +0200, Vincent Lefevre wrote: > (actually, we want to know whether the file contents have changed).
Then the correct and portable way to do it is to check file size, and if that has not changed then check the actual contents. Making assumptions about filesystem timestamps and their relationship to a particular system clock, especially at a sub-second granularity, has been shown to be insufficient for the purpose being discussed.
