sync(1) — Linux manual page


SYNC(1)                       User Commands                      SYNC(1)

NAME         top

       sync - Synchronize cached writes to persistent storage

SYNOPSIS         top

       sync [OPTION] [FILE]...

DESCRIPTION         top

       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

              output version information and exit

BUGS         top

       Persistence guarantees vary per system.  See the system calls
       below for more details.

AUTHOR         top

       Written by Jim Meyering and Giuseppe Scrivano.

REPORTING BUGS         top

       GNU coreutils online help:
       Report any translation bugs to

COPYRIGHT         top

       Copyright © 2024 Free Software Foundation, Inc.  License GPLv3+:
       GNU GPL version 3 or later <>.
       This is free software: you are free to change and redistribute
       it.  There is NO WARRANTY, to the extent permitted by law.

SEE ALSO         top

       fdatasync(2), fsync(2), sync(2), syncfs(2)

       Full documentation <>
       or available locally via: info '(coreutils) sync invocation'

COLOPHON         top

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       manipulation utilities) project.  Information about the project
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GNU coreutils 9.5              March 2024                        SYNC(1)

Pages that refer to this page: bdflush(2)fsync(2)quotactl(2)sync(2)proc_sys_vm(5)btrfs-filesystem(8)