<p>man 2 fsync is clearly littered with the psychic damage incurred while developing Time Machine.</p><p><a href="https://developer.apple.com/library/archive/documentation/System/Conceptual/ManPages_iPhoneOS/man2/fsync.2.html" target="_blank" rel="nofollow noopener" translate="no"><span class="invisible">https://</span><span class="ellipsis">developer.apple.com/library/ar</span><span class="invisible">chive/documentation/System/Conceptual/ManPages_iPhoneOS/man2/fsync.2.html</span></a></p>