DOCUMENTATION

SYNOPSIS

 PERL PROGRAM NAME: System_Variables_config.pl 
 AUTHOR: Juan Lorenzo
 DATE: July 29 2016 
 DESCRIPTION Combines configuration variables
     both from a simple text file and from
     from additional packages.

 USED FOR 
      Upper-level variable
      definitions in iTop_Mute3 
      Seismic data is assumed currently to be in
      su format.

 BASED ON:
 Version 1  Based on linux command "cat"
 Version 2 based on Sucat.pm June 29 2016
    Added a simple configuration file readable 
    and writable using Config::Simple (CPAN)

 Oct. 19 2016    
 Version 2.1 Includes option for multiple users in every directory 
   
 Needs: Simple (ASCII) local configuration 
      file is Project_Variables.config

Notes

 Simple reads configuration file and
 cretes a hash with parameters (keys/names) and
 their values as assigned inside the configuration
 file
 

anonymous hash array reference $CFG class: cfg method: param returns: value

 contains all the configuration variables in
 perl script

   HOME                ='/home/gom';
   PROJECT_HOME         = '/FalseRiver';;
   site                 = 'Bueche';
   spare_dir            = '';
   date                 = '051216';
   component            = 'H';
   line                 = '1';
   subUser              = 'gom';

  print("home is $CFG[2]\n\n");