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
Report bugs to: bug-coreutils@gnu.org
GNU coreutils home page: <https://www.gnu.org/software/coreutils/>
General help using GNU software: <https://www.gnu.org/gethelp/>
Report any translation bugs to <https://translationproject.org/team/>
COPYRIGHT
Copyright © 2026 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
sync(1), sync(1), sync(1), syncfs(2)
Full documentation <https://www.gnu.org/software/coreutils/sync>
or available locally via: info '(coreutils) sync invocation'
GNU coreutils 9.10 March 2026 sync(1)
coreutils 9.10 - Generated Thu Apr 2 18:30:27 CDT 2026