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gfxattr(1) [debian man page]

GFXATTR(1)																GFXATTR(1)

NAME

       gfxattr - Manipulate extended attributes in Gfarm file system

SYNOPSIS

       gfxattr [ -s | -g | -l | -r ] [ -x ] [ -c | -m ] [ -f xattrfile ] file [ xattrname ]

DESCRIPTION

       gfxattr	manipulates  extended  attributes and XML extended attributes of a specified file.  An extended attribute consists of an attribute
       name and an attribute value, which are arbitrary strings.  An XML extended attribute is an  extended  attribute	having	an  XML  attribute
       value.  Since XML extended attributes have a different name space from extended attributes, the same attribute name can be used.

       When  the -x option is specified, XML extended attributes are manipulated.  It is possible to search XML extended attributes by XPath query
       using gffindxmlattr command.

       All files and directories in Gfarm file system can keep extended attributes.  When removing a file or directory,  the  associated  extended
       attributes are also removed.

       Either -s, -g, -l, or -r option should be specified.

OPTIONS

       -s     sets  a  new value with an extended attribute xattrname for a specified file.  With the -f option, the value can be specified by the
	      file xattrfile instead of by the standard input.	When neither -c nor -m option is specified, the extended attribute is  overwritten
	      if it is already set.

       -g     reads a value with an extended attribute xattrname for a specified file.

       -l     display a list of extended attributes for a specified file.

       -r     removes a extended attribute xattrname for a specified file.

       -x     manipulates XML extended attributes.

       -c     sets a new extended attribute if it is not set.  This option is used with the -s option.

       -m     modifies the extended attribute if there it is.  This option is used with the -s option.

       -f xattrfile
	      With  the  -s  option,  reads  an  extended  attribute from the specified xattrfile instead of from the standard input.  With the -g
	      option, writes the extended attribute to the specified xattrfile instead of to the standard output.

       -?     displays usage.

SEE ALSO

       gffindxmlattr(1)

Gfarm								  18 August 2009							GFXATTR(1)

Check Out this Related Man Page

REMOVEXATTR(2)							   System calls 						    REMOVEXATTR(2)

NAME

       removexattr, lremovexattr, fremovexattr - remove an extended attribute

SYNOPSIS

       #include <sys/types.h>
       #include <attr/xattr.h>

       int removexattr (const char *path, const char *name);
       int lremovexattr (const char *path, const char *name);
       int fremovexattr (int filedes, const char *name);

DESCRIPTION

       Extended  attributes  are  name:value  pairs associated with inodes (files, directories, symlinks, etc).  They are extensions to the normal
       attributes which are associated with all inodes in the system (i.e. the stat(2) data).  A complete overview of extended attributes concepts
       can be found in attr(5).

       removexattr removes the extended attribute identified by name and associated with the given path in the filesystem.

       lremovexattr  is  identical  to	removexattr,  except in the case of a symbolic link, where the extended attribute is removed from the link
       itself, not the file that it refers to.

       fremovexattr is identical to removexattr, only the extended attribute is removed from the open file pointed to by filedes (as  returned	by
       open(2)) in place of path.

       An  extended  attribute	name  is  a  simple NULL-terminated string.  The name includes a namespace prefix - there may be several, disjoint
       namespaces associated with an individual inode.

RETURN VALUE

       On success, zero is returned.  On failure, -1 is returned and errno is set appropriately.

       If the named attribute does not exist, errno is set to ENOATTR.

       If extended attributes are not supported by the filesystem, or are disabled, errno is set to ENOTSUP.

       The errors documented for the stat(2) system call are also applicable here.

AUTHORS

       Andreas Gruenbacher, <a.gruenbacher@bestbits.at> and the SGI XFS development team, <linux-xfs@oss.sgi.com>.  Please send any bug reports or
       comments to these addresses.

SEE ALSO

       getfattr(1), setfattr(1), open(2), stat(2), setxattr(2), getxattr(2), listxattr(2), and attr(5).

Dec 2001							Extended Attributes						    REMOVEXATTR(2)
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