NAME

sync − update super-block

SYNOPSIS

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 icheck, df, etc.  It is mandatory before a boot. 

SEE ALSO

sync(1), update(8)

BUGS

The writing, although scheduled, is not necessarily complete upon return from sync.

ASSEMBLER

(sync = 36.) 
sys sync

7th Edition