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getextattr(8)
NAME
getextattr, lsextattr, rmextattr, setextattr -- manipulate extended
attributes
SYNOPSIS
getextattr [-fhqsx] attrnamespace attrname filename ...
lsextattr [-fhq] attrnamespace filename ...
rmextattr [-fhq] attrnamespace attrname filename ...
setextattr [-fhnq] attrnamespace attrname attrvalue filename ...
DESCRIPTION
These utilities are user tools to manipulate the named extended
attributes on files and directories. The attrnamespace argument should
be the namespace of the attribute to retrieve: legal values are user and
system. The attrname argument should be the name of the attribute,
filename the name of the target file or directory, attrvalue a string to
store in the attribute.
The following options are available:
-f (Force.) Ignore errors on individual filenames and continue with
the remaining arguments.
-h (No follow.) If the file is a symbolic link, perform the opera-
tion on the link itself rather than the file that the link points
to.
-n (NUL-terminate.) NUL-terminate the extent content written out.
-q (Quiet.) Do not print out the pathname and suppress error mes-
sages.
-s (Stringify.) Escape nonprinting characters and put quotes around
the output.
-x (Hex.) Print the output in hexadecimal.
EXAMPLES
setextattr system md5 `md5 -q /boot/kernel/kernel` /boot/kernel/kernel
getextattr system md5 /boot/kernel/kernel
lsextattr system /boot/kernel/kernel
rmextattr system md5 /boot/kernel/kernel
SEE ALSO
extattr(2), extattr(3), extattrctl(8), extattr(9)
HISTORY
Extended attribute support was developed as part of the TrustedBSD
Project, and introduced in FreeBSD 5.0. It was developed to support
security extensions requiring additional labels to be associated with
each file or directory.
AUTHORS
Robert N M Watson
Poul-Henning Kamp
BUGS
SPONSORED LINKS
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