2025-03-14 21:59:59 -06:00
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# sync
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> Flushes all pending write operations to the appropriate disks.
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> More information: <https://www.gnu.org/software/coreutils/manual/html_node/sync-invocation.html>.
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- Flush all pending write operations on all disks:
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`sync`
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- Flush all pending write operations on a single file to disk:
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`sync {{path/to/file}}`
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2025-07-24 22:27:13 -06:00
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- Flush writes and drop file system caches (Linux only):
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`sync; echo 3 | sudo tee /proc/sys/vm/drop_caches`
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- Flush disk writes and attempts to clear inactive memory and filesystem caches (macOS only):
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`sync; sudo purge`
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