ultrix man page for sync

sync(2) 							System Calls Manual							   sync(2)

Name
       sync - update super-block

Syntax
       void sync()

Description
       The system call causes all information in memory that should be on disk to be written out.  This includes modified superblocks, modified i-
       nodes, and delayed block I/O.

       Programs that examine a file system, for example, or use the system call.  The writing, although scheduled,  is	not  necessarily  complete
       upon return from

See Also
       sync(1), fsync(2), update(8)

																	   sync(2)