bext

NAME
SYNOPSIS
DESCRIPTION
FILES
SEE ALSO
BUGS
COPYRIGHT
AUTHOR

NAME

bext - BSU program pattern extracts traces from a large data set (C-Language Version)

SYNOPSIS

bext [ -h | infile | extsw | value ]

DESCRIPTION

Basic Seismic Utilities (BSU) extracts traces from a large data set. One may extract traces with a common shot name, common receiver name, or common original field number. Large data sets can be formed by using the UNIX cat command. C-Language Version.

Options

-h

Online help giving details on command line arguments

infile

Input file name

extsw

Switch to direct type of extraction (1 character)

s= extract by shot name value

r= extract by receiver name value

f= extract by original field record number

value

Value which needs to be matched if a trace is to be extracted. This is can be a 4 character string, (for shot or receiver name). Alternatively, it can be an integer value (original field record number). Use program bdump to find the character strings or numbers.

NOTE:
If invoked with no options, will prompt user for input parameters. Leading blanks are important. If entering a 4 character name on the command line, use quote marks, (ie "abcd"). If interactive input, no " marks are needed.

EXAMPLE:
bext merg.seg s " 040"

File merg.seg is processed by bext. Only traces with shot name " 040" are output (one leading blank).

FILES

bextxxxx.seg

named according to convention (first 4char bext, the next 4char are the first 4char of the input file name, suffix .seg)

standard output

produces a progress bar

bextxxxx.lst

Echo check of input parameters in listing file, plus a table of statics applied.

SEE ALSO

bhelp(1), bdump(1), c_bsegy(5)

BUGS

no known bugs

COPYRIGHT

Copyright © 2024 by Paul Michaels

This program is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation; either version 2 of the License, or (at your option) any later version. This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details. You should have received a copy of the GNU General Public License along with this program; if not, write to the Free Software Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.

AUTHOR

P. Michaels, PE. <paulmichaels@.boisestate.edu>