SYNC(II) 8/5/73 SYNC(II)
NAME
sync - update super-block
SYNOPSIS
(sync = 36.; not in assembler)
sys sync
DESCRIPTION
Sync 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.
It should be used by programs which examine a file system,
for example check, df, etc. It is mandatory before a boot.
SEE ALSO
sync (VIII), update (VIII)
DIAGNOSTICS
-