NAME

     endfire  - module to resort split spread into single enders

SYNOPSIS

     endfire [ -Nntap ] [ -Ootap ] [ -R ] [ -U ] [ -V ] [ -? ]

DESCRIPTION

     endfire sorts each input  split-spread  record  by  distance
     (ascending)  into  two  single enders each starting with the
     near offset trace

     endfire gets both its data and its parameters  from  command
     line  arguments.  These arguments specify the input, output,
     verbose printout, if desired, and flags to signal undoing  a
     previous  endfire  operation  and renumbering output traces.
     endfire can be run after program sisort  or  any  other  USP
     program.


  Command line arguments
     -N ntap
          Enter the input data set name or file immediately after
          typing  -N.   No entry indicates piping in.  This input
          file should include the complete path name if the  file
          resides in a different directory.  Example -n/vsp/dummy
          tells the program to look for file 'dummy' in directory
          'vsp'.

     -O otap
          Enter the output data  set  name  or  file  immediately
          after  typing  -O.   If the output is to be piped no -O
          entry should  be  given.   The  output  data  set  also
          requires the full path name (see above).

     -R   Enter the command line argument '-R' to renumber traces
          on output.  Default is do not renumber.

     -U   Enter the command line argument '-U'  essentially  undo
          the results of a previous endfire operation.  This will
          cause the  output  records  to  once  again  be  single
          split-spread  with  distances sorted from most negative
          to most positive.  Any  trace  renumbering  done  in  a
          prior endfire will not be undone.

     -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.