How can I see the contents of an index file? - eccodes FAQ

How can I see the contents of an index file?

Step-by-step guide

You can use the grib_dump command with the "-D" option:

% grib_dump -D my.index

1. And the output will look something like this:

   --- grib_index_build: processing data/tigge_cf_ecmwf.grib2
   --- grib_index_build: processing data/tigge_af_ecmwf.grib2
   --- grib_index_build: keys included in the index file idx:
   --- mars.date, mars.stream, mars.type, mars.step, mars.param, mars.levtype, mars.levelist, mars.number
   --- mars.date = { 20070122, 20060630, 20060623, 20060811, 20060619 }
   --- mars.stream = { enfo, oper }
   --- mars.type = { cf, fc }
   --- mars.step = { 96, 0 }
   --- mars.param = { 165, 166, 59, 260207, 156, 172, 151, 228002, 179, 3, 60, 260210, 235, 228141, 228144, 228039, 228139, 133, 189, 168, 121, 122, 167, 147, 176, 177, 134, 146 }
   --- mars.levtype = { sfc, pl, pv, pt }
   --- mars.levelist = { undef, 925, 2, 320 }
   --- mars.number = { 0, undef }
   --- 83 messages indexed

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