42 lines
781 B
Groff
42 lines
781 B
Groff
.Dd 2020-10-06
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.Dt SYNC 1
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.Os HitchHiker linux
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.Sh NAME
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.Nm sync
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.Nd force completion of pending disk writes (flush cache)
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.Sh SYNOPSIS
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.Nm
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.Sh DESCRIPTION
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The
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.Nm
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utility can be called to ensure that all disk writes have been completed
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before the processor is halted in a way not suitably done by
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.Xr reboot 8
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or
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.Xr halt 8 .
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Generally, it is preferable to use
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.Xr reboot 8
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or
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.Xr halt 8
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to shut down the system, as they may perform additional actions such as
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resynchronizing the hardware clock and flushing internal caches before
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performing a final
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.Nm sync .
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.Pp
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.Nm
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utilizes the
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.Xr sync 2
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function.
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.Sh AUTHOR
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Written by the JeanG3nie for HitchHiker Linux.
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.Sh SEE ALSO
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.Xr fsync 2 ,
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.Xr sync 2 ,
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.Xr halt 8 ,
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.Xr reboot 8
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.Sh HISTORY
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A
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.Nm
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command first appeared in
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.At v4 .
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