rmextattr(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 ex

tended
attributes on files and directories. The attrnamespace ar

gument should
be the namespace of the attribute to retrieve: legal values

are user and
system. The attrname argument should be the name of the at

tribute,
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, per

form 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

The setextattr utility can only be used to set attributes to

strings.

BSD August 30, 2000

BSD