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

    SEE ALSO
         sync(VIII), update(VIII)

    DIAGNOSTICS
         -

                                  - 1 -