08-28-2017
You didn't say anything about there being header lines in your files that need to be ignored, so the code I suggested in post #5 in this thread would give you a count that is 1 more than the number of different customer IDs found in all of the .csv files in the directory in which you run that script. I assume that you can manually subtract 1 from the result printed or change the line in the code that prints the value of c to instead print c-1 to get the results you want.
Did you try running the code I suggested? Do you have some reason to think it is not doing what I described above?
If what I provided is not sufficient, please explain what it is doing wrong AND show us exactly the output you want from the sample input you provided.
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LEARN ABOUT DEBIAN
ocamlwc
OCAMLWC(1) General Commands Manual OCAMLWC(1)
NAME
ocamlwc - count the lines of code and comments in OCaml sources
SYNOPSIS
ocamlwc [options] [files]
DESCRIPTION
ocamlwc is a program to count the number of lines of code and documentation in OCaml sources. It assumes its input to be lexically well-
formed. If no files are given, then ocamlwc reads from stdin.
The first column of the output lists the number of source lines of code, the second column the number of lines of documentation, and the
third the respective filename. If ocamlwc acts on more than one file, then it prints a total in the last line.
OPTIONS
-p Print percentage of documentation (in an additional column after the filename).
-c Print only the code size, i.e., omit the documentation column.
-e (everything) Do not skip headers. A header is the first comment in a file.
-a (all) Do not skip generated files. foo.ml is a generated file if one of foo.mll, foo.mly, or foo.ml4 is amongst the given files.
foo.mli is a generated file if foo.mly is amongst the given files.
-h Print short usage information.
AUTHOR
ocamlwc was written by Jean-Christophe Filliatre <Jean-Christophe.Filliatre@lri.fr>.
This manual page was written by Georg Neis <gn@oglaroon.de>.
January 2, 2007 OCAMLWC(1)