.\" Copyright (c) 1980 Regents of the University of California.
.\" All rights reserved.  The Berkeley software License Agreement
.\" specifies the terms and conditions for redistribution.
.\"
.\"	@(#)sync.2	6.2 (Berkeley) 6/30/85
.\"
.TH SYNC 2 "June 30, 1985"
.UC 4
.SH NAME
sync \- update super-block
.SH SYNOPSIS
.nf
.ft B
#include <unistd.h>

int sync(void)
.ft R
.fi
.SH DESCRIPTION
.B Sync
causes all information in the file system
buffers that should be on disk to be written out.
This includes modified super blocks,
modified i-nodes, and delayed block I/O.
.SH "SEE ALSO"
.BR reboot (2),
.BR sync (8).