sync

Options

--file-system, -f

sync-help-file-system

--data, -d

sync-help-data

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 under the CC BY 4.0 License.

Please note that, as uutils is a work in progress, some examples might fail.