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hdfls - Online in the Cloud

Run hdfls in OnWorks free hosting provider over Ubuntu Online, Fedora Online, Windows online emulator or MAC OS online emulator

This is the command hdfls that can be run in the OnWorks free hosting provider using one of our multiple free online workstations such as Ubuntu Online, Fedora Online, Windows online emulator or MAC OS online emulator

PROGRAM:

NAME


hdfls - list basic information about an HDF file

SYNOPSIS


hdfls [-o] [-l] [-d] [-v] [-g] [-s] [-h] [-t n] hdf_file

DESCRIPTION


hdfls provides general information about the tags, reference numbers, and if requested,
lengths of the data elements.

OPTIONS


-o display the reference numbers in ascending order.

-l long format. Display more information about the file.

-d Display offset and length information for each element in the file.

-v verbose. Display annotation and label text, along with the format triggered by the
-l flag.

-g Group. List items by group.

-s Special elements. Display detailed information about special elements.

-d Display offset and length information for each element in the file.

-h Dump DD block information.

-t n Tag. Only list information about the specified tag. Must be followed by a tag
number.

EXAMPLES


A file called "aa.hdf" contains three items associated with a raster image; the image
dimensions, a palette, and the raster image. To display information about the contents of
this file, the following command is used.

hdfls aa.hdf

The following output is displayed:

aa.hdf:

Image Dimensions-8: (Raster-8): (tag 200)

Ref nos: 1

Image Palette-8: (Raster-8): (tag 201)

Ref nos: 3

Raster Image-8: (Raster-8): (tag 202)

Ref nos: 1

The following displays the same information with the length of each data element:

hdfls -l aa.hdf

This would result in the following information being displayed:

aa.hdf:

Image Dimensions-8: (Raster-8) : (tag 200)

Ref no 1 4 bytes

Image Palette-8: (Raster-8) : (tag 201)

Ref no 3 768 bytes

Raster Image-8: (Raster-8) : (tag 202)

Ref no 1 120000 bytes

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