[rhn-users] processes stop on rhe 4
Paula J. Lindsay
paula at scripps.edu
Fri Aug 17 14:54:21 UTC 2007
Thank you Richard and Herta. What's funny is they are using the & to
put in the background.
I have not tried the nohup rsync or the screen program. I will try
that. Many thanks for your
help.
Paula
Richard Riley wrote:
>Paula,
>
>Putting the & at the end of a command puts the process in the
>background. If you want the process to remain running after you exit,
>you need to use nohup. Example below:
>
>$> nohup rsync -avz /data/ remotemachine:/ &
>
>This will start rsync and run it in the background and nohup will
>prevent if from stopping when you log off. The main difference with
>this and using "screen" is that you cannot pull the process out of the
>background to foreground like you can with "screen", so this is mostly
>used for programs that you expect to end but don't want to wait for.
>
>Richard Riley
>System Administrator
>
>Procuri Inc.
>www.procuri.com
>
>
>
>
>>-----Original Message-----
>>From: rhn-users-bounces at redhat.com [mailto:rhn-users-
>>bounces at redhat.com] On Behalf Of Herta Van den Eynde
>>Sent: Thursday, August 16, 2007 7:49 PM
>>To: Discussions about Red Hat Network (rhn.redhat.com)
>>Subject: Re: [rhn-users] processes stop on rhe 4
>>
>>On 17/08/07, Paula J. Lindsay <paula at scripps.edu> wrote:
>>
>>
>>>Hi everyone,
>>>I have a red hat enterprise 4 machine connected to an instrument.
>>>
>>>
>>There
>>
>>
>>>is something happening that I've never seen.
>>>The users log in and put the processes in the background "&" and
>>>
>>>
>>then
>>
>>
>>>log off. When they log off, the processes stop
>>>and they loose their jobs. Has anyone heard of this? Many
>>>
>>>
>>thanks for
>>
>>
>>>any advice/suggestions/solutions.
>>>Paula
>>>
>>>--
>>>--*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-
>>>
>>>
>>*-*-*
>>
>>
>>> o The Paula J. Lindsay, IT Analyst III
>>> / Research Computing, TPC21
>>>o Scripps phone: 858.784.9378
>>> \ fax: 858.784.9301
>>> o Research email: paula at scripps.edu
>>> /
>>>o Institute
>>>
>>>
>>>
>>~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
>>~~
>>
>>Hi Paula,
>>
>>If you haven't done so already, install the 'screen' package.
>>
>>I often work from a laptop, and sometimes from an unreliable windows
>>PC. So if I want to run a job on a server that I don't want to get
>>interrupted, I usually go
>>
>>$ screen
>>$ script ~/output.log.`date +%Y%m%d-%H%M` # optional
>>run whatever commands I need
>><Ctrl/A/D> # detaches the screen
>>
>>At that point, I can disconnect my laptop or reboot my unstable
>>windows desktop.
>>I (or a colleague) can log in again from any source and then monitor
>>the job using a 'tail -f [output-file]', and can re-attach using
>>'screen -r'.
>>
>>To terminate 'script', press <Ctrl/D>. To terminate 'screen', press
>><Ctrl/D> again.
>>
>>FWIIW, the screen command needs write access to the tty device, so
>>logging in from one account, su-ing to another, and then running
>>'screen' usually doesn't work.
>>
>>Hope this helps.
>>
>>Kind regards,
>>
>>Herta
>>
>>_______________________________________________
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>>rhn-users at redhat.com
>>https://www.redhat.com/mailman/listinfo/rhn-users
>>
>>
>
>
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>
>
--
--*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*-*
o The Paula J. Lindsay, IT Analyst III
/ Research Computing, TPC21
o Scripps phone: 858.784.9378
\ fax: 858.784.9301
o Research email: paula at scripps.edu
/
o Institute
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
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