sync - flush system buffers

sync causes all system buffers not yet written to hard disk or floppies to be flushed out to disk, thus assuring that all file updates up to that point are saved.

A system buffer is an internal buffer that serves to improve system performance. It is not accessible to users.

Syntax

sync

Application usage

sync will only write local buffers to local disks; you cannot use sync to force buffers to be written out to disk on remote machines.