Some progress: 
my $forks = 0;
foreach my $i (1..3) {
    if ($i == 1 && fork() == 0) {
        $forks++;
        print "Running first with $$ \n";
        
        call_sub1();
        call_sub2();
        call_sub3();
        call_sub4();
        call_sub5();
        call_sub6();
        exit;
    } elsif ($i == 2 && fork() == 0) {
        $forks++;
        print "Running second $$ \n";

        call_sub1();
        call_sub10();
        call_sub3();
        call_sub13();
        call_sub5();
        
        exit;
    } else {
        if (fork() == 0) {
            $forks++;
             print "Running third with $$ \n";
            call_sub1();
            call_sub4();
            call_sub5();
            call_sub15();
            exit;
        }
    }

}

for (1 .. $forks) {
    my $pid = wait();
    print "Parent saw $pid exiting\n";
}

print "done\n";

[download]
It really feels messy and not clear. Also, it is not the most efficient because ALL of the 15 calls are not depend one on another. with that logic I can create 15 if-else statements but of course it is not readable and clear. Also, the names are not the same (and all of them gets arguments - I removed them so it will be more easy to see). How should I solve it? Also, should I kill the child process when its done by using exit?

In reply to Re: Learning to use fork() by ovedpo15
in thread Learning to use fork() by ovedpo15

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