"Main program"
#!/usr/bin/perl -w

...  # docu and version info -- skipped

use strict;
use FileHandle;
use File::stat;
use Getopt::Long;
use POSIX ":sys_wait_h";
use POSIX qw(ceil);
use Socket;

#==============================================================================
#== Find the lib dir
use Cwd;
use File::Basename;

BEGIN {
  my $dir = dirname($0);
  my $path;
  if ($dir =~ /^\//) {
    #--absolute path
    $path = $dir;
  } elsif ($dir eq ".") {
    #-- relative, current dir
    $path = getcwd();
  } else {
    #-- relative, but not from current dir
    $dir =~ s/^\.\///;
    $path = getcwd()."/$dir";
  }
  unshift(@INC, "$path/lib");
  unshift(@INC, "$path/lib-perl");
  unshift(@INC, "$path/lib-perl/sun4-solaris-64int");
}
#==============================================================================
use Net::TFTP;
use Net::SNMP::Security::USM v3.0.0;

use IsamCli;
use Isam7354RUCli;
use Crypt::Lite;
use Utils;  # -- BB --
use Octopus;
use Capability;
use ToolCommon qw(:CONSTANTS);
use PbmtConfig;
use ErrorCodes qw(:EXIT_CODES :SWDL);
use FamilyCommon;
....