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sync(1) General Commands Manual sync(1)

NAME

sync - Synchronize cached writes to persistent storage

SYNOPSIS

sync [-f|--file-system] [-d|--data] [-h|--help] [-V|--version] [files]

DESCRIPTION

Synchronize cached writes to persistent storage

OPTIONS

sync the file systems that contain the files (Linux and Windows only)
sync only file data, no unneeded metadata (Linux only)
Print help
Print version
[files]

VERSION

v(uutils coreutils) 0.7.0

EXAMPLES

Flush all pending write operations on all disks:

sync

Flush all pending write operations on a single file to disk:

sync path/to/file

Flush writes and drop file system caches (Linux only):

sync; echo 3 | sudo tee /proc/sys/vm/drop_caches

Flush disk writes and attempts to clear inactive memory and filesystem caches (macOS only):

sync; sudo purge

The examples are provided by the tldr-pages project <https://tldr.sh> under the CC BY 4.0 License. Please note that, as uutils is a work in progress, some examples might fail.

sync (uutils coreutils) 0.7.0