hpux man page for sync

sync(1M)																  sync(1M)

NAME
       sync - synchronize file systems

SYNOPSIS
DESCRIPTION
       executes the system call (see sync(2)).	If the system is to be stopped, the command must be called to ensure file system integrity.

       flushes	all previously unwritten system buffers including modified super blocks, modified inodes, and delayed block I/O out to disk.  This
       ensures that all file modifications are properly saved before performing a critical operation such as a system  shutdown.   For	additional
       protection from power failures or possible system crashes, use to execute automatically at periodic intervals (see syncer(1M)).

AUTHOR
       was developed by AT&T and HP.

SEE ALSO
       syncer(1M), sync(2).

STANDARDS CONFORMANCE
																	  sync(1M)