# NeXus links have two parts in HDF5 files.

# The dataset is created in some group.
# A "target" attribute is added to indicate the HDF5 path to this dataset.

ATTRIBUTE "target" {
   DATATYPE  H5T_STRING {
		 STRSIZE 21;
		 STRPAD H5T_STR_NULLPAD;
		 CSET H5T_CSET_ASCII;
		 CTYPE H5T_C_S1;
	  }
   DATASPACE  SCALAR
   DATA {
   (0): "/entry/data/two_theta"
   }
}

# then, the hard link is created that refers to the original dataset
# (Since the name is "two_theta" in this example, it is understood that
# this link is created in a different HDF5 group than "/entry/data".)

DATASET "two_theta" {
   HARDLINK "/entry/data/two_theta"
}