Lots of things said in the first reply is actually wrong. select does not have the magic to redirect standard output. I guess you are trying your program on a PC, if that's the case, now select does not work for windows. Your program simply hangs at that select (remove it, you will see what happens)

I only read the first several paragraphes of the first reply, the conceptual part. So I am not commenting on those sample codes.

Couple other trival tips:

• when you print debug info, always put a \n at the end, so the msg will be flushed right the way, otherwise you could be confused for a long time for nothing, wondering where does the output go, well it is waiting to be flushed in the queue (for example your hallo1 here)
• Secondly don't put your debug msg in single quos, it makes the \n not interpreted.
• Last, I doubt your browser will show anything, as what you send to the client is not in html format (and not a http response). (Well, this depends on how your browser works, that's a seperate issue.)

---

---

Posts are HTML formatted. Put <p> </p> tags around your paragraphs. Put <code> </code> tags around your code and data!

Titles consisting of a single word are discouraged, and in most cases are disallowed outright.

Read Where should I post X? if you're not absolutely sure you're posting in the right place.

Please read these before you post! —

• How do I compose an effective node title?
• How do I post a question effectively?
• Markup in the Monastery

Posts may use any of the Perl Monks Approved HTML tags:

a, abbr, b, big, blockquote, br, caption, center, col, colgroup, dd, del, details, div, dl, dt, em, font, h1, h2, h3, h4, h5, h6, hr, i, ins, li, ol, p, pre, readmore, small, span, spoiler, strike, strong, sub, summary, sup, table, tbody, td, tfoot, th, thead, tr, tt, u, ul, wbr

You may need to use entities for some characters, as follows. (Exception: Within code tags, you can put the characters literally.)

	For:		Use:
	&		&
	<		&lt;
	>		&gt;
	[		&#91;
	]		&#93;

Link using PerlMonks shortcuts! What shortcuts can I use for linking?

See Writeup Formatting Tips and other pages linked from there for more info.