| sync.8 (63498) | sync.8 (68935) |
|---|---|
| 1.\" Copyright (c) 1980, 1991, 1993 2.\" The Regents of the University of California. All rights reserved. 3.\" 4.\" Redistribution and use in source and binary forms, with or without 5.\" modification, are permitted provided that the following conditions 6.\" are met: 7.\" 1. Redistributions of source code must retain the above copyright 8.\" notice, this list of conditions and the following disclaimer. --- 16 unchanged lines hidden (view full) --- 25.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 26.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 27.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 28.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 29.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 30.\" SUCH DAMAGE. 31.\" 32.\" @(#)sync.8 8.1 (Berkeley) 5/31/93 | 1.\" Copyright (c) 1980, 1991, 1993 2.\" The Regents of the University of California. All rights reserved. 3.\" 4.\" Redistribution and use in source and binary forms, with or without 5.\" modification, are permitted provided that the following conditions 6.\" are met: 7.\" 1. Redistributions of source code must retain the above copyright 8.\" notice, this list of conditions and the following disclaimer. --- 16 unchanged lines hidden (view full) --- 25.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 26.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 27.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 28.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 29.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 30.\" SUCH DAMAGE. 31.\" 32.\" @(#)sync.8 8.1 (Berkeley) 5/31/93 |
| 33.\" $FreeBSD: head/bin/sync/sync.8 63498 2000-07-19 07:39:08Z sheldonh $ | 33.\" $FreeBSD: head/bin/sync/sync.8 68935 2000-11-20 11:39:41Z ru $ |
| 34.\" 35.Dd May 31, 1993 36.Dt SYNC 8 37.Os BSD 4 38.Sh NAME 39.Nm sync 40.Nd force completion of pending disk writes (flush cache) 41.Sh SYNOPSIS | 34.\" 35.Dd May 31, 1993 36.Dt SYNC 8 37.Os BSD 4 38.Sh NAME 39.Nm sync 40.Nd force completion of pending disk writes (flush cache) 41.Sh SYNOPSIS |
| 42.Nm sync | 42.Nm |
| 43.Sh DESCRIPTION 44.Nm Sync 45can be called to insure that all disk writes have been completed before the 46processor is halted in a way not suitably done by 47.Xr reboot 8 48or 49.Xr halt 8 . 50Generally, it is preferable to use 51.Xr reboot 8 52or 53.Xr halt 8 54to shut down the system, 55as they may perform additional actions 56such as resynchronizing the hardware clock 57and flushing internal caches before performing a final | 43.Sh DESCRIPTION 44.Nm Sync 45can be called to insure that all disk writes have been completed before the 46processor is halted in a way not suitably done by 47.Xr reboot 8 48or 49.Xr halt 8 . 50Generally, it is preferable to use 51.Xr reboot 8 52or 53.Xr halt 8 54to shut down the system, 55as they may perform additional actions 56such as resynchronizing the hardware clock 57and flushing internal caches before performing a final |
| 58.Nm Ns . | 58.Nm . |
| 59.Pp 60.Nm Sync 61utilizes the 62.Xr sync 2 63function call. 64.Sh SEE ALSO 65.Xr fsync 2 , 66.Xr sync 2 , 67.Xr syncer 4 , 68.Xr halt 8 , 69.Xr reboot 8 70.Sh HISTORY 71A 72.Nm 73command appeared in 74.At v6 . | 59.Pp 60.Nm Sync 61utilizes the 62.Xr sync 2 63function call. 64.Sh SEE ALSO 65.Xr fsync 2 , 66.Xr sync 2 , 67.Xr syncer 4 , 68.Xr halt 8 , 69.Xr reboot 8 70.Sh HISTORY 71A 72.Nm 73command appeared in 74.At v6 . |