.TH SYNC 2 "12 February 1983"
sync \- update super-block
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.
should be used by programs which examine a file system,
is mandatory before a boot.
fsync(2), sync(8), update(8)
The writing, although scheduled, is not necessarily
complete upon return from