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.TH UPDATE 8
.SH NAME
update \- periodically write the buffer cache to disk
.SH SYNOPSIS
\fBupdate\fR
.br
.de FL
.TP
\\fB\\$1\\fR
\\$2
..
.de EX
.TP 20
\\fB\\$1\\fR
# \\$2
..
.SH EXAMPLES
.TP 20
.B update &
# Start a process that flushes the cache
.SH DESCRIPTION
.PP
When the system is booted,
.I update
is started up in the background from
.I /etc/rc
to issue a
\&SYNC
system call every 30 sec.
.SH "SEE ALSO"
.BR boot (8).
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