topic Re: proccess in background in Operating System - HP-UX

proccess in background

Fredy Correa — Tue, 28 Mar 2006 15:22:59 GMT

good afternoon.. with which command can I execute a job so that when closing the session the process it is not canceled???
I am attempting with nohup, with & but it doesn't work.
Thank you

Re: proccess in background

Rick Garland — Tue, 28 Mar 2006 15:25:49 GMT

nohup &

Were you forgetting the Amperstand character at the end?

Re: proccess in background

Kent Ostby — Tue, 28 Mar 2006 15:29:47 GMT

Fredy:

nohup &

should work.

What command is it that you are trying to run?

Re: proccess in background

Steven E. Protter — Tue, 28 Mar 2006 15:31:01 GMT

Shalom Fredy,

the nohup command tries to create a file called nohup.out in the current directory. Its possible if access rights don't permit this that its being blocked.

SEP

Re: proccess in background

A. Clay Stephenson — Tue, 28 Mar 2006 15:38:28 GMT

Bear in mind that nohup sets the default signal handling for the child process to ignore SIGHUP and SIGQUIT but the child process might introduce custom signal handlers which override this behavior thus not all processes are valid candidates for nohup.

Re: proccess in background

Ninad_1 — Tue, 28 Mar 2006 15:38:59 GMT

Fredy,

As everyone has mentioned what you wish to do works with nohup command & .
Why you are saying it doesnt run ?
When you give the command
nohup commmand &
the pid of the process is displayed. So
1. Check before exiting from the session if the process is running by
ps -ef | grep
2. Check the nohup.out file - to see if any errors had occured.

Hope this helps,

Ninad

Re: proccess in background

Fredy Correa — Tue, 28 Mar 2006 16:01:32 GMT

When generating the command it tells me that the pid is XXX, when I see for ps - ef appears me that and other jobs that the one generates, when leaving the session it cancels them

Fredy

Re: proccess in background

Fredy Correa — Tue, 28 Mar 2006 16:17:37 GMT

the nohup.out is this hole

Re: proccess in background

Muthukumar_5 — Tue, 28 Mar 2006 23:47:37 GMT

Try like this:

-- script --
contains shell commands

# nohup ./script 1>/tmp/test.log 2>/tmp/test.err &

it will not cancel the process which created by script. Read man nohup in EXAMPLES part.

--
Muthu

Re: proccess in background

Senthil Prabu.S_1 — Wed, 29 Mar 2006 00:26:19 GMT

Hi,

Use nohup to obtain it.

Syntax:
#nohup &

HTH,
Prabu.S

Re: proccess in background

Ulrich Deiters — Wed, 29 Mar 2006 03:28:09 GMT

As an alternative you can try this:

batch

...
CTRL-d

Depending on your system you may need a permission in /etc/at.allow to use the "batch" or "at" command.

Re: proccess in background

Fredy Correa — Mon, 17 Apr 2006 10:56:57 GMT

solves to the problem using commando at -ffile now.

Thanks,

Fredy C.