How about something like: 
#!/usr/bin/perl
use strict;
use warnings;
use Proc::Background;
use Config;

my $secure_perl_path = $Config{perlpath};

if ($^O ne 'VMS')
 {$secure_perl_path .= $Config{_exe}
      unless $secure_perl_path =~ m/$Config{_exe}$/i };

my $command1 = "$secure_perl_path $ENV{'source'}/src/CreatePerson.pl";
my $command2 = "$secure_perl_path $ENV{'source'}/src/CreateCountry.pl"
+;

my @processes;

foreach ( $command1, $command2 ) {
    my $proc = Proc::Background->new("$_ &");
    push @processes, $proc;
}


while(1){
   my $at_least_one_alive = 0;
   for my $proc(@processes){
        
        if($proc->alive()){
             print "'" . $proc->pid . "' is still alive";
             $at_least_one_alive = 1;
        }
        sleep(1); #or however long you would like.
    }
   last if ! $at_least_one_alive;
}

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In reply to Re^3: Execute progams in parallel by molecules
in thread Execute progams in parallel by kalyanrajsista

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