sync(8) System Manager's Manual 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
Specifies the command path
RELATED INFORMATION
Functions: sync(2) delim off
sync(8)
