freebsd-dev/usr.sbin/setextattr/setextattr.8
Robert Watson 166eb62fe2 Introduce userland utilities to set and get extended attributes. These
utilities do not present the world's greatest interface, and will
undoubtably change soon.  However, they do let people experiment with
extended attributes, and provide samples of how to use the syscalls.

Obtained from:	TrustedBSD
2000-04-16 20:55:50 +00:00

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.\"-
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.Dd March 30, 2000
.Dt SETEXTATTR 8
.Os FreeBSD 5.0
.Sh NAME
.Nm setextattr
.Nd set a named extended attribute
.Sh SYNOPSIS
.Nm setextattr
.Ar attrname
.Ar filename
.Ar attrvalue
.Sh DESCRIPTION
.Nm
is a user tool to set a named extended attribute on a file or directory to
the provided string.
The
.Ar attrname
argument should be the name of the attribute,
.Ar filename
the name of the file or directory to set the attribute for, and
.Ar attrvalue
a string to store in the attribute.
.Nm
will store the string in the file's attribute.
In order for
.Nm
to succeed, the attribute service must be available on the file system,
and appropriate privilege may be required.
.Sh EXAMPLES
.Pp
.Dl # setextattr md5 /kernel `md5 -q /kernel`
.Pp
Set the ``md5'' extended attribute on the file /kernel to the string
containing the output of ``md5 -q /kernel''.
.Sh SEE ALSO
.Xr extattrctl 8 ,
.Xr getextattr 8 ,
.Xr extattr 9
.Sh 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.
.Sh AUTHORS
Robert N M Watson
.Sh BUGS
.Nm
can only be used to set attributes to strings.