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|
.TH HDFLS 1 "October 31, 1999"
.\" man page by Jim Van Zandt <jrv@vanzandt.mv.com> -*- nroff -*-
.SH NAME
hdfls \- list basic information about an HDF file
.SH SYNOPSIS
\fBhdfls\fP
[\fB-o\fP]
[\fB-l\fP]
[\fB-d\fP]
[\fB-v\fP]
[\fB-g\fP]
[\fB-s\fP]
[\fB-h\fP]
[\fB-t\fP \fIn\fP]
\fIhdf_file\fP
.SH DESCRIPTION
\fBhdfls\fP provides general information about the tags,
reference numbers, and if requested, lengths of the data elements.
.SH OPTIONS
.TP
.BI -o
display the reference numbers in ascending order.
.TP
.BI -l
long format. Display more information about the file.
.TP
.BI -d
Display offset and length information for each element in the file.
.TP
.BI -v
verbose. Display annotation and label text, along with the format
triggered by the -l flag.
.TP
.BI -g
Group. List items by group.
.TP
.BI -s
Special elements. Display detailed information about special
elements.
.TP
.BI -d
Display offset and length information for each element in
the file.
.TP
.BI -h
Dump DD block information.
.TP
.BI -t " n"
Tag. Only list information about the specified tag. Must be followed
by a tag number.
.SH 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.
.sp
hdfls aa.hdf
.sp
The following output is displayed:
.nf
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
.fi
The following displays the same information with the length of each
data element:
.sp
hdfls -l aa.hdf
.sp
This would result in the following information being displayed:
.nf
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
.fi
.SH "SEE ALSO"
\fBhdf\fP(5)
|
