t...
      ;;
      print, 'file                  : ', file
      print, 'attribute             : ', attr
      print, '================================================='
      print, 'attribute value       : ', val

   IDL outputs:
   
       file                  : ../Mtk_testdata/in/MISR_AM1_GRP_ELLIPSOID_GM_P037_O029058_AA_F03_0024.hdf
       attribute             : Path_number
       =================================================
       attribute value       :           37

-Particulars
   None.

-R