, evildictait​or wrote

 

Also "atomic operations happen instantly" on what planet? atomic operations happen atomically. They can take years if they have to, the only restriction is that they either happen completely or don't happen at all, and that any parallel access sees either the previous state or the new state. Atomicity doesn't make any statements about operation length.

If you wanted to make specific changes to 1000 files, how would you accomplish that atomically?