SYNC(1M)                             SysV                             SYNC(1M)



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 ensure file-system integrity.  sync flushes all
     previously unwritten system buffers out to disk, thus assuring that all
     file modifications up to that point are saved.  See sync(2) for details.

NOTE
     If you have performed a write to a file on a remote machine in a remote
     file sharing environment (RFS), you cannot use sync to force buffers to
     be written out to disk on the remote machine.  sync writes only local
     buffers to local disks.

SEE ALSO
     sync(2)