SYNC(2) 1985 SYNC(2) NNAAMMEE sync - update super-block SSYYNNOOPPSSIISS ssyynncc(()) DDEESSCCRRIIPPTTIIOONN _S_y_n_c causes all information in core memory that should be on disk to be written out. This includes modified super blocks, modified i-nodes, and delayed block I/O. _S_y_n_c should be used by programs that examine a file system, for example _f_s_c_k, _d_f, etc. _S_y_n_c is mandatory before a boot. SSEEEE AALLSSOO fsync(2), sync(8), update(8) BBUUGGSS The writing, although scheduled, is not necessarily complete upon return from _s_y_n_c. Printed 7/27/90 June 1