c:\@Work\Perl\monks>perl
my @arr = (12341,1245125,1525125,125125125);

my $str = do {
  local $" = ' || job==';
  "job==@arr";
  };
$" eq ' ' or die 'localization failed';

$str eq 'job==12341 || job==1245125 || job==1525125 || job==125125125'
  or die 'nope';

print ">$str< ok";

__END__
>job==12341 || job==1245125 || job==1525125 || job==125125125< ok