sourCEntral - mobile manpages

pdf

HDFLS

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

SEE ALSO

hdf(5)

pdf