<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=iso-8859-1">
</head>
<body style="word-wrap:break-word">
There is also a third-party tool, erld, that helps with running Erlang as a well behaved unix daemon. (Disclaimer: I'm the author.)
<div><br>
</div>
<div>It's described here: <a href="https://github.com/ShoreTel-Inc/erld/wiki">https://github.com/ShoreTel-Inc/erld/wiki</a></div>
<div><br>
</div>
<div>Cheers,</div>
<div>Sam.</div>
<div><br>
<div>
<div>On 21/10/2013, at 11:09 PM, Michael Scofield <<a href="mailto:bayinamine@gmail.com">bayinamine@gmail.com</a>> wrote:</div>
<br class="Apple-interchange-newline">
<blockquote type="cite">
<div bgcolor="#FFFFFF">Hi all! I'm new to erlang for a few month. <br>
<br>
Recently I've developed a small pure erlang program, and it runs well in the shell. Now I want to run it in the background, as a daemon service process in the os (mine is Ubuntu 12.04 64bit with R16B). So I googled "run erlang without shell", and google gave
me some advice:<br>
<br>
1. Using escript. -This is what erlang official faq suggested ( <a href="http://www.erlang.org/faq/how_do_i.html">
http://www.erlang.org/faq/how_do_i.html</a>). <br>
2. erl -detached -s Module Function Args<br>
<br>
I tried both. As to #1, my escript goes to<br>
<br>
#!/usr/bin/env escript<br>
main(_) -><br>
my_supervisor:start_link(arg1, arg2).<br>
<br>
I ran it using "nohup ./my-escript &", and it didn't run my code. =(<br>
<br>
So I went to #2. I was acknowledged that "-s" can only pass 0 or 1 argument, so I wrapped my supervisor using<br>
<br>
-module(run).<br>
-export([start/0]).<br>
<br>
start() -><br>
my_supervisor:start_link(arg1, arg2).<br>
<br>
and ran my code as "erl -detached -s run start". But this was also a dead end. <br>
<br>
I guessed it's because the run:start/0 just returned and finished the shell(Is it?), so I added a line to the run:start/0:<br>
<br>
-module(run).<br>
-export([start/0]).<br>
<br>
start() -><br>
my_supervisor:start_link(arg1, arg2),<br>
<b>receive after infinity -> stop end.</b><br>
<br>
And executed "erl -detached -s run start", and everything goes fine! my_supervisor started to work without the shell!<br>
<br>
Though the problem "solved", I'm very very confused.<br>
1. Why the "magic line" solved my problem?<br>
2. What exactly is the proper or right way to run an erlang application in the background as the command "nohup ... &" does?<br>
<br>
Thanks in advance!<br>
<br>
Michael<br>
</div>
_______________________________________________<br>
erlang-questions mailing list<br>
<a href="mailto:erlang-questions@erlang.org">erlang-questions@erlang.org</a><br>
http://erlang.org/mailman/listinfo/erlang-questions<br>
</blockquote>
</div>
<br>
</div>
<br>
<hr>
<font face="Arial" color="Gray" size="1"><br>
This e-mail and any attachments are confidential. If it is not intended for you, please notify the sender, and please erase and ignore the contents.<br>
</font>
</body>
</html>