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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)