NAME
hdp - display general information about the contents of an HDF file
SYNOPSIS
hdp [-H command] hdf-file
DESCRIPTION
hdp provides quick and general information about all objects in the
specified HDF file. It can list the contents of HDF files at various
levels with different details. It can also dump the data of one or more
specific objects in the file.
Like hdfed, hdp provides a set of commands that allow the user to
determine what kind of information is to be displayed. The commands
are documented in /usr/share/doc/libhdf4g/html-userguide/Utils.html.
OPTIONS
-H [command]
Display usage information about the specified command. If no
command is listed, information about all commands is displayed.
COMMANDS
list Displays the contents of the HDF files in the specified format.
dumpsds
Displays the contents of the SDSs in the listed files.
dumpvd Displays the contents of the vdata objects in the listed files.
dumpvg Displays the contents of the vgroup objects in the listed files.
dumprig
Displays the contents of the RIGs in the listed files.
COMMAND DETAILS
list displays the contents of the HDF files in the specified format.
As with the ’info’ command, the listing for special elements will
contain a special tag value (for DFTAG_VS it’s 18347) and the text
"Unknown Tag". The list command has the following syntax:
list [-s|-l|-d] [-n|-c|-a] [-g|-t number-or-name] [-ot|-of|-og|-on]
message
The list command accepts these options:
-s Short format.
-l Long format.
-d Debug format.
-n Display the object name.
-c Display the object class.
-a Display the object description.
-g Display groups only.
-t number-or-name
Display objects with the specified tag number or name.
-ot Sort by tag.
-of Sort by position in the data descriptor list.
-og Sort by group.
-on Sort by name.
dumpsds displays SDS information in the specified format. The dumpsds
command has the following syntax:
dumpsds [-i index | -r ref-list | -n name-list | -a] [-v|-h|-d] [-o
filename | -b | -t]
dumpsds accepts these options:
-i index
Dump SDSs with the specified index.
-r ref-list
Dump SDSs with the specified reference numbers.
-n name-list
Dump SDSs with the specified names.
-a Dump all SDSs.
-v Display all SDS contents including annotations.
-h Display the SDS header only.
-d Display the SDS data only.
-o outfile
Print information to the specified file.
-b Specify output file as binary.
-t Specify output file as text.
dumpvd displays vdata information in the specified format. The dumpvd
command has this syntax:
dumpvd [-i index | -r ref-list | -n name-list | -c class | [-a]
[-v|-h|-f|-d] [-o filename | -b | -t]
dumpvd accepts these options:
-i index
Dump vdatas with the specified index.
-r ref-list
Dump vdatas with the specified reference numbers.
-c class
Dump vdatas with the specified class.
-n name-list
Dump vdatas with the specified names.
-a Dump all vdatas.
-v Display all vdata contents including annotations.
-h Display the vdata header only.
-d Display the vdata data only.
-f Display the vdata field data only.
-o outfile
Print information to the specified file.
-b Specify output file as binary.
-t Specify output file as text.
dumpvg displays vgroup information in the specified format. dumpvg
command has this syntax:
dumpvg [-i index | -r ref-list | -n name-list | -c class | [-a]
[-v|-h|-d] [-o filename | -b | -t]
dumpvg accepts these options:
-i index
Dump vgroups with the specified index.
-r ref-list
Dump vgroups with the specified reference numbers.
-c class
Dump vgroups with the specified class.
-n name-list
Dump vgroups with the specified names.
-a Dump all vgroups.
-v Display all vgroup contents including annotations.
-h Display the vgroup header only.
-d Display the vgroup data only.
-o outfile
Print information to the specified file.
-b Specify output file as binary.
-t Specify output file as text.
dumprig displays RIG information in the specified format. dumprig
command has this syntax:
dumprig [-i index | -r ref-list | -m <8, 24> | [-a] [-v|-h|-d] [-o
filename | -b | -t]
dumprig accepts these options:
-i index
Dump RIGs with the specified index.
-r ref-list
Dump RIGs with the specified reference numbers.
-m data-length
Dump RIGs with the specified data length: 8- or 24-bit.
-a Dump all RIGs.
-v Display RIG contents including annotations.
-h Display the RIG header only.
-d Display the RIG data only.
-o outfile
Print information to the specified file.
-b Specify output file as binary.
-t Specify output file as text.
SEE ALSO
hdfed(1), hdf(5), /usr/share/doc/libhdf4g/html-userguide/Utils.html.
November 6, 1999