[gentoo-user] Make a running process nohup?

[gentoo-user] Make a running process nohup?

[Qiangning Hong]

Is it possible make a running process nohup so that I can leave it
running after I logout without interrupt it?

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Qiangning Hong
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Re: [gentoo-user] Make a running process nohup?

[Andrey Bulgakov]

Hello Qiangning,

Wednesday, September 7, 2005, 1:12:47 PM, you wrote:

> Is it possible make a running process nohup so that I can leave it
> running after I logout without interrupt it?

Screen is not applicable?


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Re: [gentoo-user] Make a running process nohup?

[Michael Schreckenbauer]

Hi,

Am Mittwoch, 7. September 2005 14:30 schrieb Andrey Bulgakov:
> Hello Qiangning,
> Wednesday, September 7, 2005, 1:12:47 PM, you wrote:
> > Is it possible make a running process nohup so that I can leave it
> > running after I logout without interrupt it?
>
> Screen is not applicable?

you can attach screen to an already running process? How does this work?
Afaik there are some versions of nohup knowing the parameter -p <pid> to do 
this. I do not know, if the gentoo-provided version has that (it's not 
mentioned in the man page).

regards
Michael



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Re: [gentoo-user] Make a running process nohup?

[Matthew Cline]

On 9/7/05, Qiangning Hong <hongqn@gmail.com> wrote:
> Is it possible make a running process nohup so that I can leave it
> running after I logout without interrupt it?
> 

How about disown, a bash built-in?

$ disown -h <job number>


HTH,

Matt

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Re: [gentoo-user] Make a running process nohup?

[Peter Karlsson]

On Wed, 7 Sep 2005, Qiangning Hong wrote:

> Is it possible make a running process nohup so that I can leave it
> running after I logout without interrupt it?

man nohup? (+nice/renice?)

Best regards

Peter K

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Re: [gentoo-user] Make a running process nohup?

[Ow Mun Heng]

On Wed, 2005-09-07 at 19:16 +0200, Peter Karlsson wrote:
> On Wed, 7 Sep 2005, Qiangning Hong wrote:
> 
> > Is it possible make a running process nohup so that I can leave it
> > running after I logout without interrupt it?
> 
> man nohup? (+nice/renice?)

I think you guys missed the point. OP mentioned "Running Process"

Not sure what disown does since there's no man pages on it. (as
suggested by Matthew Cline)

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Re: [gentoo-user] Make a running process nohup?

[Willie Wong]

On Thu, Sep 08, 2005 at 10:12:52AM +0800, Ow Mun Heng wrote:
> I think you guys missed the point. OP mentioned "Running Process"
> 
> Not sure what disown does since there's no man pages on it. (as
> suggested by Matthew Cline)
> 

And Matthew also said it was a Bash bulletin, so you should man bash
instead of man disown. 

Let me quote some juicy bits for the list:

...

       The shell exits by default upon receipt of a SIGHUP.   Before  exiting,
       an  interactive  shell  resends  the  SIGHUP  to  all  jobs, running or
       stopped.  Stopped jobs are sent SIGCONT to ensure that they receive the
       SIGHUP.   To  prevent the shell from sending the signal to a particular
       job, it should be removed from the jobs table with the  disown  builtin
       (see  SHELL  BUILTIN  COMMANDS  below)  or marked to not receive SIGHUP
       using disown -h.

...

       disown [-ar] [-h] [jobspec ...]
              Without options, each jobspec  is  removed  from  the  table  of
              active  jobs.   If  the  -h option is given, each jobspec is not
              removed from the table, but is marked so that SIGHUP is not sent
              to  the  job  if  the shell receives a SIGHUP.  If no jobspec is
              present, and neither the -a nor the -r option is  supplied,  the
              current  job  is used.  If no jobspec is supplied, the -a option
              means to remove or mark all jobs; the -r option without  a  job-
              spec  argument  restricts operation to running jobs.  The return
              value is 0 unless a jobspec does not specify a valid job.


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Re: [gentoo-user] Make a running process nohup?

[Frank Schafer]

On Thu, 2005-09-08 at 10:12 +0800, Ow Mun Heng wrote:
> On Wed, 2005-09-07 at 19:16 +0200, Peter Karlsson wrote:
> > On Wed, 7 Sep 2005, Qiangning Hong wrote:
> > 
> > > Is it possible make a running process nohup so that I can leave it
> > > running after I logout without interrupt it?
> > 
> > man nohup? (+nice/renice?)
> 
> I think you guys missed the point. OP mentioned "Running Process"
> 
> Not sure what disown does since there's no man pages on it. (as
> suggested by Matthew Cline)

$ man bash
+--------------------------------------+
| blah                                 |
| blabla bla blab blabla ....          |
| ...                                  |
|/disown<CR>                           |
+--------------------------------------+

... as mentioned, ``disown'' is a bash builtin ;-p

Regards
Frank

PS: This should do the trick for the initial problem.


> 
> -- 
> Ow Mun Heng
> Gentoo/Linux on DELL D600 1.4Ghz 1.5GB RAM
> 98% Microsoft(tm) Free!! 
> Neuromancer 10:11:16 up 2 days, 40 min, 7 users, load average: 0.74,
> 0.58, 0.78 
> 
> 
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[gentoo-user] Re: Make a running process nohup?

[Moshe Kaminsky]

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Hi,

* Qiangning Hong <hongqn@gmail.com> [07/09/05 12:20]:
> 
> Is it possible make a running process nohup so that I can leave it
> running after I logout without interrupt it?

I don't know a standard way to do it, but I think what might work is to 
run gdb within screen, in gdb say 'attach <pid>' (where <pid> is the 
process id of your process), then say 'handle SIGHUP ignore nostop' and 
finally 'cont' to continue the program. Didn't try it.

Moshe

> 
> -- 
> Qiangning Hong
> http://www.hn.org/hongqn (RSS: http://feeds.feedburner.com/hongqn)
> 
> Registered Linux User #396996
> Get Firefox! <http://www.spreadfirefox.com/?q=affiliates&id=67907&t=1>
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> gentoo-user@gentoo.org mailing list
> 

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