.\""Copyright (c) 2001 Apple Computer, Inc. All Rights Reserved. .\"The contents of this file constitute Original Code as defined in and are .\"subject to the Apple Public Source License Version 1.2 (the 'License'). .\"You may not use this file except in compliance with the .\"License. Please obtain a copy of the License at .\"http://www.apple.com/publicsource and read it before using this file. .\" .\"This Original Code and all software distributed under the License are .\"distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER .\"EXPRESS OR IMPLIED, AND APPLE .\"HEREBY DISCLAIMS ALL SUCH WARRANTIES, INCLUDING WITHOUT LIMITATION, ANY .\"WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE, .\"QUIET ENJOYMENT OR NON-INFRINGEMENT. Please see the License for the .\"specific language governing rights and limitations under the License." .Dd March 24, 2001 .Dt UPDATE 8 .Os Darwin .Sh NAME .Nm update .Nd flush internal filesystem caches to disk frequently .Sh SYNOPSIS .Nm update .Sh DESCRIPTION The .Nm update command will flush volitile cached filesystem data to disk every thirty seconds. .Sh HISTORY An .Nm update command appeared in .At v6 .