.\" Copyright (c) 2000 Paul Saab <ps@FreeBSD.org>
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.Dd January 25, 2005
.Dt FSYNC 1
.Os
.Sh NAME
.Nm fsync
.Nd synchronize a file's in-core state with that on disk
.Sh SYNOPSIS
.Nm
.Ar
.Sh DESCRIPTION
The
.Nm
utility causes all the modified data and meta-data of
all the files named on the command line
to be written to a permanent storage device.
.Pp
The
.Nm
utility uses the
.Xr fsync 2
function call.
.Sh EXIT STATUS
If an error occurs, the
.Nm
utility proceeds to the next file, and exits >0.
Otherwise, it exits 0.
.Sh SEE ALSO
.Xr fsync 2 ,
.Xr sync 2 ,
.Xr syncer 4 ,
.Xr halt 8 ,
.Xr reboot 8
.Sh HISTORY
The
.Nm
command first appeared in
.Fx 4.3 .