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sync(8)								      sync(8)



NAME

  sync - Flush file system metadata and	data from memory buffers to disk.

SYNOPSIS

  /sbin/sync

DESCRIPTION

  The sync utility runs	the sync function, which flushes (writes) system
  metadata and data from all unwritten memory buffers to disk.	For example,
  the data flushed includes, for UFS, modified inodes and delayed block	I/O.

  Other	commands that bring the	system down, such as the shutdown command,
  issue	their own sync functions.

  Use this sync	utility	to  ensure file	system integrity should	you need to
  stop the system under	unusual	circumstances.

  Note that the	writing	of buffers to disk, although scheduled,	may not	be
  complete when	the utility exits.

FILES

  /sbin/sync
      Specifies	the command path

SEE ALSO

  Functions: sync(2)