sync [OPTION] [FILE]...
!subtitle:功能
将缓存写入存储器。
!subtitle:类型
可执行文件（/usr/bin/sync），属于 coreutils。
!subtitle:参数
OPTION 选项：
-d, --data - 仅同步文件内容数据，不同步非必要的元数据
-f, --file-system - 同步包含 FILE 参数的文件系统
--help - 显示帮助
--version - 显示版本
FILE - 文件列表
SYNC(1) User Commands SYNC(1)
NAME
sync - Synchronize cached writes to persistent storage
SYNOPSIS
sync [OPTION] [FILE]...
DESCRIPTION
Synchronize cached writes to persistent storage
If one or more files are specified, sync only them, or their containing
file systems.
-d, --data
sync only file data, no unneeded metadata
-f, --file-system
sync the file systems that contain the files
--help display this help and exit
--version
output version information and exit
BUGS
Persistence guarantees vary per system. See the system calls below for
more details.
AUTHOR
Written by Jim Meyering and Giuseppe Scrivano.
REPORTING BUGS
GNU coreutils online help: <https://www.gnu.org/software/coreutils/>
Report any translation bugs to <https://translationproject.org/team/>
COPYRIGHT
Copyright © 2023 Free Software Foundation, Inc. License GPLv3+: GNU
GPL version 3 or later <https://gnu.org/licenses/gpl.html>.
This is free software: you are free to change and redistribute it.
There is NO WARRANTY, to the extent permitted by law.
SEE ALSO
fdatasync(2), fsync(2), sync(2), syncfs(2)
Full documentation <https://www.gnu.org/software/coreutils/sync>
or available locally via: info '(coreutils) sync invocation'
GNU coreutils 9.4 April 2024 SYNC(1)