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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	(C) 2025 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 9.9		  November 2025 			 SYNC(1)
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