but ignore any failure to do that and print no corresponding diagnostic.
Equivalent to @option{-dR --preserve=all} with the reduced diagnostics.
+@itemx --attributes-only
+@opindex --attributes-only
+Preserve the specified attributes of the original files in the copy,
+but do not copy any data. See the @option{--preserve} option for
+controlling which attributes to copy.
+
@item -b
@itemx @w{@kbd{--backup}[=@var{method}]}
@opindex -b