[NTLUG:Discuss] Forking server in bash posible ? (fun hack ...no apparent value )

[Burton M. Strauss III]

Use the &.

It starts a process and sends it to the background...

-----Burton

> -----Original Message-----
> From: discuss-bounces at ntlug.org [mailto:discuss-bounces at ntlug.org]On
> Behalf Of gan hawk
> Sent: Wednesday, March 31, 2004 12:19 AM
> To: discuss at ntlug.org
> Subject: [NTLUG:Discuss] Forking server in bash posible ? (fun hack
> ...no apparent value )
>
>
> Hi,
>
> This is something that has no value but I have done to amuse myself.  So
> read on if you also want to waste some time ;)
>
> I am trying to learn perl and saw this perl script to create a
> streaming MP3
> server on perl monks. I wanted to do the same in bash and here is what I
> came up with (see below)... Now I was wondering if it was
> possible to make
> it a forking server. Like listen and when some connection comes
> in, fork or
> spaw a child process to do the work and continue listening. I think its
> possible with netcat but I cannot figure it out. Anyways if
> someone can do
> that it would be fun.
>
> #!/bin/bash
> DIR=`pwd`
> echo "BASH_MP3D - A Streaming MP3 Server in Bash "
> echo "Generating Playlist .....Plz wait"
> PLAYLIST=`find $DIR -name *.mp3`
> #PLAYLIST=`ls *.mp3`
> NUM=`echo $PLAYLIST | wc -w`
> echo "done."
> echo "Listening on 5700 ....."
> {
> while true
> do
> #get seconds for random number
> rand=`date | cut -d ':' -f 3 |cut -d ' ' -f1`
> let "rand += 1"
> while [ "$rand" -gt "$NUM" ]
> do
> let "rand -= $NUM"
> done
> SONG=`echo $PLAYLIST | cut -d ' ' -f$rand`
> #Now we play the random song SONG
> echo "Playing $SONG ... " >& 2
> echo "HTTP/1.0 200 OK";
> echo "Content-Type: audio/x-mp3stream";
> echo "Cache-Control: no-cache ";
> echo "Pragma: no-cache ";
> echo "Connection: close ";
> echo "x-audiocast-name: BASH MP3 Server";
> echo;
> echo;
> dd if=$SONG bs=1024
> done
> }| nc -l -p 5700
>
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