Did that park the heads of the hd before you powered off? I remember doing that ... | Hacker News

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		zz865 on Feb 3, 2021 \| parent \| context \| favorite \| on: Getting better at Linux with mini-projects Did that park the heads of the hd before you powered off? I remember doing that in the 80s.

Gracana on Feb 3, 2021 [–]

sync flushes the write caches to disk. sync twice makes really damn sure all your files are written to the disk, heh.

oilbagz on Feb 3, 2021 | [–]

Not just disk, also tapes, which is what the original command was for - to sync stuff to the tape spool for offline'ing ..

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