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 operation on the
link itself rather than the file that the link points to.
 | 
|  -i
 | 
|   | 
(From stdin.)
Read attribute data from stdin instead of as an argument.
 | 
|  -n
 | 
|   | 
( NUL
-terminate.)
 NUL
-terminate the extent content written out.
 | 
|  -q
 | 
|   | 
(Quiet.)
Do not print out the pathname and suppress error messages.
When given twice, print only the attribute value, with no trailing newline.
 | 
|  -s
 | 
|   | 
(Stringify.)
Escape nonprinting characters and put quotes around the output.
 | 
|  -x
 | 
|   | 
(Hex.)
Print the output in hexadecimal.
 |