NAME

     revtr  -  reverse trace order in a record and/or flip traces

SYNOPSIS

     revtr [ -Nntap ] [ -Ootap ] [ -rsnrst ] [ -renred ] [ -F ] [
     -norev ] [ -R ] [ -S ] [ -V ] [ -? ]

DESCRIPTION

     revtr reverses trace  order  record-by-record  for  selected
     records  and/or flips each trace in the record (first sample
     becomes the last sample).

     Revtr gets both its data and  its  parameters  from  command
     line  arguments.  These arguments specify the input, output,
     the start and end records, and verbos printout, if desired.

  Command line arguments
     -N ntap
          Enter the input data set name or file immediately 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.

     -O otap
          Enter the output data  set  name  or  file  immediately
          after  typing -O.  This ouput file is not required when
          piping the output to another process.  The output  data
          set also requires the full path name (see above).

     -rs nrst
          Enter start record number.  Default value is the  first
          record.

     -re nred
          Enter end record number.  Default value is last record.

     -F   Enter the command line argument '-F' to flip the traces
          (first sample becomes the last sample).

     -norev
          Enter the command line argument '-norev'  to  turn  off
          the reverse trace ordering operation.

     -R   Enter the command line argument '-R' to renumber traces

     -S   Enter the command line argument '-S' to change the sign
          of the signed trace distances in the reversed record

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

     -?   Enter the command line  argument  '-?'  to  get  online
          help.   The program terminates after the help screen is
          printed.

COPYRIGHT

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