rmextattr man page on NetBSD

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GETEXTATTR(1)		  BSD General Commands Manual		 GETEXTATTR(1)

NAME
     getextattr, lsextattr, rmextattr, setextattr — manipulate extended
     attributes

SYNOPSIS
     getextattr [-fhq] [-s | -x | -v style] [namespace] attrname filename ...
     lsextattr [-fhq] namespace filename ...
     rmextattr [-fhq] [namespace] attrname filename ...
     setextattr [-fhnq] [namespace] attrname attrvalue filename ...
     setextattr [-fhnq] -i valuefile [namespace] attrname filename ...

DESCRIPTION
     These utilities are user tools to manipulate the named extended
     attributes on files and directories.

     The namespace argument should be the namespace of the attribute to
     retrieve: legal values are user and system.  For all operations except
     lsextattr, the namespace argument may be omitted if the attribute name is
     namespace prefixed, like in user.test.  In that later case, the user
     namespace prefix obviously selects user namespace.	 system, security, and
     trusted namespace prefixes select the system namespace.

     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.

     -i valuefile
	     (Input file.)  Read the attribute value from file valuefile.  Use
	     this flag in order to set a binary value for an attribute.

     -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.

     -v style
	     (Visual.)	Process the attribute value through vis(3), using
	     style.  Valid values for style are:

	     default
		     Use default vis(3) encoding.

	     c	     Use C-style backslash sequences, like in vis -c.

	     http    Use URI encoding from RFC 1808, like in vis -h.

	     octal   Display in octal, like in vis -o.

	     vis     Alias for default.

	     cstyle  Alias for c.

	     httpstyle
		     Alias for http.

     -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

     Examples omitting namespace (and attribute value) argument:

     setextattr -i valuefile trusted.gfid /export/wd3a
     getextattr -x trusted.gfid /export/wd3a

SEE ALSO
     extattr(3), extattrctl(8), extattr(9)

HISTORY
     Extended attribute support was developed as part of the TrustedBSD
     Project, and introduced in FreeBSD 5.0 and NetBSD 3.0.  It was developed
     to support security extensions requiring additional labels to be associ‐
     ated with each file or directory.

     Extended attribute support was resurrected and made more usable in
     NetBSD 5.2.

AUTHORS
     Robert N M Watson
     Poul-Henning Kamp
     Emmanuel Dreyfus

BSD				January 2, 2005				   BSD
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