NAME

     hdrext - Extract traceheader values and place them in a  USP
     formatted dataset

SYNOPSIS

     hdrext [-Nntap] [-Ootap] [-nsns] [-nene]  [-rsirs]  [-reire]
     [-keykeyword] [-V] [-?]  [-h]

DESCRIPTION

     hdrext will extract one user specified  keyword  value  from
     each  trace  header of a USP formatted dataset and produce a
     plane containing these keyword values.  The  output  dataset
     will  be a USP formatted dataset containing one record.  The
     number of traces out will be equal to the number of  records
     on input.  The number of samples per trace out will be equal
     to the number of traces on input.  hdrext gets  its  dataset
     names and its parameters from command line arguments.

  Command line arguments
     -Nntap
          Enter the name of the input dataset  after  typing  -N.
          This  input  file should include the complete path name
          if the file resides in a different directory.   Example
          -N/b/vsp/dummy  tells  the  program  to  look  for file
          'dummy' in directory 'vsp' stored on the 'b' disk.

     -Ootap
          Enter the name of the output dataset after  typing  -O.
          This  dataset  also  requires  the  full  pathname (see
          above).

     -nsns
          Enter the trace number of the first  trace  to  process
          after  typing  -ns.   The  default  is to use the first
          trace of the record.

     -nene
          Enter the trace number of the  last  trace  to  process
          after typing -ne.  The default is to use the last trace
          of the record.

     -rsirs
          Enter the record number of the first record to  process
          after  typing  -rs.   The  default  is to use the first
          record of the dataset.

     -reire
          Enter the record number of the last record  to  process
          after  typing  -re.   The  default  is  to use the last
          record of the dataset.


     -keykeyword
          Enter the keyword to be extracted from the trace header
          after typing -key.

     -V   Enter the command line argument '-V' to get  additional
          printout.

     -?   Enter this (or '-?' if you are running in  c-shell)  to
          get  online  help.   The  program  will terminate after
          printing this.

     -h   Enter this option to get online help.  The program will
          terminate after printing this.

SEE ALSO

     hdrfil

BUGS

     None known.

AUTHOR

     Mary Ann Thornton

COPYRIGHT

     copyright 2001, Amoco Production Company
               All Rights Reserved
          an affiliate of BP America Inc.