# sync(8)

    NAME
         sync - flush the cache to disk

    SYNOPSIS
         sync

    EXAMPLES

         sync                # Write out all modified cache blocks

    DESCRIPTION

         MINIX maintains a cache of recently used disk blocks.  The  sync  command
         writes  any  modified  cache  blocks back to the disk.  This is essential
         before stopping the system, and should be done before running  any  a.out
         program that might crash.

    SEE ALSO
         sync(2), update(8), shutdown(8).