SETFATTR(1) File Utilities SETFATTR(1)
setfattr - set extended attributes of filesystem objects
setfattr [-h] -n name [-v value] pathname... setfattr [-h] -x name pathname... setfattr [-h] --restore=file
The setfattr command associates a new value with an extended attribute name for each specified file.
-n name, --name=name Specifies the name of the extended attribute to set. -v value, --value=value Specifies the new value of the extended attribute. There are three methods available for encoding the value. If the given string is enclosed in double quotes, the inner string is treated as text. In that case, backslashes and double quotes have special meanings and need to be escaped by a preceding backslash. Any control characters can be encoded as a backslash followed by three digits as its ASCII code in octal. If the given string begins with 0x or 0X, it expresses a hexadecimal number. If the given string begins with 0s or 0S, base64 encoding is expected. Also see the --encoding option of getfattr(1). -x name, --remove=name Remove the named extended attribute entirely. -h, --no-dereference Do not follow symlinks. If pathname is a symbolic link, it is not followed, but is instead itself the inode being modified. --restore=file Restores extended attributes from file. The file must be in the format generated by the getfattr command with the --dump option. If a dash (-) is given as the file name, setfattr reads from standard input. --raw Do not decode the attribute value. Can be used to set values obtained with getfattr --only-values. --version Print the version of setfattr and exit. --help Print help explaining the command line options. -- End of command line options. All remaining parameters are interpreted as file names, even if they start with a dash character.
Add extended attribute to user namespace: $ setfattr -n user.foo -v bar file.txt To add md5sum of the file as an extended attribute: # setfattr -n trusted.md5sum -v d41d8cd98f00b204e00998ecf8427e file.txt
Andreas Gruenbacher, <email@example.com> and the SGI XFS development team, <firstname.lastname@example.org>. Please send your bug reports or comments to <https://savannah.nongnu.org/bugs/?group=attr > or <acl- email@example.com>.
This page is part of the attr (manipulating filesystem extended attributes) project. Information about the project can be found at ⟨http://savannah.nongnu.org/projects/attr⟩. If you have a bug report for this manual page, see ⟨http://savannah.nongnu.org/bugs/?group=attr⟩. This page was obtained from the project's upstream Git repository ⟨git://git.savannah.nongnu.org/attr.git⟩ on 2021-04-01. (At that time, the date of the most recent commit that was found in the repository was 2021-03-16.) If you discover any rendering problems in this HTML version of the page, or you believe there is a better or more up-to-date source for the page, or you have corrections or improvements to the information in this COLOPHON (which is not part of the original manual page), send a mail to firstname.lastname@example.org Dec 2001 Extended Attributes SETFATTR(1)
Pages that refer to this page: attr(1), getfattr(1), getxattr(2), listxattr(2), removexattr(2), setxattr(2), tmpfiles.d(5), xattr(7)