#------------------------------------------------------------------------------
#
#  NSSDC/CDF					   CDFvalidate online help.
#
#  Version 1.0, 5-Aug-08, Perot.
#
#  Modification history:
#
#   V1.0	  M Liu 	Original version.
#
#------------------------------------------------------------------------------
#ifos mac win
CDFvalidate is used to validate the CDF file(s). It goes through the internal
records, from the beginning of the file till the end, and performs some sanity
checks for valid size and range. It tries to identify any compromised CDFs.

Check boxes for...

  validate:          To validate the file.

  about:             To show the library version this program is based on.

  debug:             Whether or not the error message showing where the 
                     failed validation occurs.

  quiet:             Whether or not to suppress any message if a CDF is
                     validated properly.

Buttons for...

  Enter              Causes CDFvalidate to validate the CDF 
                     based on the parameters/qualifiers specified.

  Help               Causes this online help to be displayed.

#ifos mac
  Quit               Causes CDFvalidate to terminate.  

#endos
  Cancel             Causes the parameters/qualifiers dialog box to be
                     closed.  
#ifos mac
                     This button is only present after the first time the
                     parameters/qualifiers dialog box is displayed.
#endos
#else
#ifos vms
Usage:         $ CDFVALIDATE [/ABOUT] [/DEBUG | /QUIET] [/[NO]VALIDATE] 
                             <CDF-SPEC1> <CDF-SPEC2> ...
#endos
#ifos unix
Usage:         % cdfvalidate [-about] [-debug | -quiet] [-[no]validate] 
                             <cdf-spec1> <cdf-spec2> ...
#endos
#ifos dos
Usage:         > cdfvalidate [-about] [-debug | -quiet] [-[no]validate] 
                             <cdf-spec1> <cdf-spec2> ...
#endos

Purpose:       CDFvalidate checks the integrity of internal CDF data 
               structures (e.g. diemensionality, internal CDF data records
               such as GDR, VDRs, etc.) and ensures that the requested 
               file(s) is not corrupted.  No message is displayed if the 
               validation was successful.

Parameter(s):  <cdf-spec1> <cdf_spec2> ...
                  The CDF(s) that will be validated.

#ifos vms
Qualifier(s):  /ABOUT
#else
Qualifier(s):  -about
#endos
                  Causes the version of the CDF distribution to
                  be displayed. 

#ifos vms
               /[NO]VALIDATE
#else
               -[no]validate
#endos
                  Specifies whether or not the CDF file(s) is to be
                  validated, no matter whether the environment variable 
                  CDF_VALIDATE on Unix or Windows, or CDF$VALIDATE on OpenVMS
                  is set. The default is "-validate". The "novalidate" option
                  is for performing a simple file opening checkout but 
                  bypassing the data validation.

#ifos vms
               /DEBUG | /QUIET
#else
               -debug | -quiet
#endos
                  Specifies whether or not to turn on the verbose mode while 
                  the data validating is ongoing. If the debug mode is on, it
                  will show what internal records, along with their locations,
                  are being checked, and display where/why the file fails the
                  validation if the data check fails. This option is
                  applicable only when "-validate" option is specified. If the
                  quiet mode is on, nothing will display if the file is 
                  validated properly. Only the file name and the cause of thei
                  failure will be displayed if the validation is not successful.
                  If none is specified, the file name is displayed, along with
                  any error messages if the validateion fails.

#ifos vms
Example(s):    $ CDFVALIDATE TEST
               $ CDFVALIDATE /DEBUG TEST.CDF
#endos
#ifos unix
Example(s):    % cdfvalidate test 
               % cdfvalidate -debug test.cdf
#endos
#ifos dos
Example(s):    > cdfvalidate test
               > cdfvalidate -debug test.cdf
#endos
#endos
