From: Gennady <gfb@...>
Date: 2004-02-03T10:11:15+09:00
Subject: Re: shell scripts in background (with &) - why would they stop?

Ruby Baby wrote:
> Shouldn't a Ruby script keep running if someone uses the "&" at the end of the command?
> 
> I have a script that takes hours to run, processing many files, on a remote server.
> 
> If I start it like this...
> ./processFiles.rb
> ... it will work, but I have to keep an SSH terminal window open for hours.
> 
> If I start it like this...
> ./processFiles.rb &
> ... and then I close my SSH session to let it run
> ... it stops immediately after I log out.
try:

trap '' 1
./processFiles.rb >processFiles.log 2>&1 &

or with 'nohup', which will do the same for you (redirecting to 
nohup.out, though):

nohup ./processFiles.rb &

> 
> 
> Is that expected behavior?
> 
> How would I get it to keep running (like my regular /bin/sh shell scripts) after I log out?
> 
> I could give example code if someone wants to see it.
>