HDFLS(1)
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 for
- mat 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