Im writing a script that will execute a command on a list of servers, and was planning on using fork to do so, however I cant have it go to every server at once, so I was going to have it go to $max amount of child processes, then wait for those to finish. It basically doesnt seem to halt at $max, it just keeps going and forks off all at once. Heres my broken code.. 
my $max = 5;

while (my ($ip, $hostname) = each(%{$hosts->{'all'}})){
        $i++;
        $c++;

        forkHost($ip);

        if($c == $max) {
                $c = 0;
                1 while (wait() != -1);
        }
}


sub forkHost {
        my $target = shift;
        my $pid;
        next if $pid = fork;    # Parent goes to next server.
        die "fork failed: $!" unless defined $pid;

        if (not $pid) {
                open COMMAND, "/execute/this/command |";
        
                # Do some magic..
        
                close COMMAND;
        
                exit; 
        }
}

[download]
Thanks for any help!

In reply to Forking multiple processes at once, but limiting how many at a time by jLinux

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