$ gdalmdiminfo netcdf-4d.nc

{
  "type": "group",
  "name": "/",
  "attributes": {
    "Conventions": "CF-1.5"
  },
  "dimensions": [
    {
      "name": "levelist",
      "full_name": "/levelist",
      "size": 2,
      "type": "VERTICAL",
      "indexing_variable": "/levelist"
    },
    {
      "name": "longitude",
      "full_name": "/longitude",
      "size": 10,
      "type": "HORIZONTAL_X",
      "direction": "EAST",
      "indexing_variable": "/longitude"
    },
    {
      "name": "latitude",
      "full_name": "/latitude",
      "size": 10,
      "type": "HORIZONTAL_Y",
      "direction": "NORTH",
      "indexing_variable": "/latitude"
    },
    {
      "name": "time",
      "full_name": "/time",
        "size": 4,
      "type": "TEMPORAL",
      "indexing_variable": "/time"
      }
  ],
  "arrays": {
    "levelist": {
      "datatype": "Int32",
      "dimensions": [
          "/levelist"
        ],
      "attributes": {
        "long_name": "pressure_level"
      },
      "unit": "millibars"
    },
    "longitude": {
      "datatype": "Float32",
      "dimensions": [
        "/longitude"
      ],
      "attributes": {
        "standard_name": "longitude",
        "long_name": "longitude",
        "axis": "X"
      },
      "unit": "degrees_east"
    },
    "latitude": {
      "datatype": "Float32",
      "dimensions": [
        "/latitude"
      ],
      "attributes": {
        "standard_name": "latitude",
        "long_name": "latitude",
        "axis": "Y"
      },
      "unit": "degrees_north"
    },
    "time": {
      "datatype": "Float64",
      "dimensions": [
        "/time"
      ],
      "attributes": {
        "standard_name": "time",
        "calendar": "standard"
      },
      "unit": "hours since 1900-01-01 00:00:00"
    },
    "t": {
      "datatype": "Int32",
      "dimensions": [
        "/time",
        "/levelist",
        "/latitude",
        "/longitude"
      ],
      "nodata_value": -32767
    }
  },
  "structural_info": {
    "NC_FORMAT": "CLASSIC"
  }
}

$ gdalmdiminfo netcdf-4d.nc -array t -detailed -limit 3