22 lines
654 B
Groff
22 lines
654 B
Groff
.\" @(#)sync.1 1.1 94/10/31 SMI; from UCB 4.2
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.TH SYNC 1 "9 September 1987"
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.SH NAME
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sync \- update the super block; force changed blocks to the disk
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.SH SYNOPSIS
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.B sync
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.SH DESCRIPTION
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.IX "sync command" "" "\fLsync\fP \(em update super block"
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.IX "update super block" "" "update super block \(em \fLsync\fP"
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.IX "flush disk activity" "" "flush disk activity \(em \fLsync\fP"
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.B sync
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forces any information on its way to the disk to be written out
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immediately.
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.B sync
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can be called to ensure that all disk writes are completed before the
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processor is halted abnormally.
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.SH "SEE ALSO"
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.BR cron (8),
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.BR fsck (8),
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.BR halt (8),
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.BR reboot (8)
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