NAME

sync − update the super block

SYNOPSIS

sync

DESCRIPTION

sync executes the sync system primitive.  If the system is to be stopped, sync must be called to insure file system integrity.  It will flush all previously unwritten system buffers out to disk, thus assuring that all file modifications up to that point will be saved.  See sync(2) for details. 

NOTE

If you have done a write to a file on a remote machine in a Remote File Sharing environment, you cannot use sync to force buffers to be written out to disk on the remote machine.  sync will only write local buffers to local disks. 

SEE ALSO

sync(2). 

  —  Essential Utilities