Executing multiple processes without waiting for their exit status.

Shell Programming and Scripting
1

Hello Friends,

Hope you are doing well.

I just need a help in executing multiple processes.

I've written a shell script which calls another scritps. But the problem is there are too many processes to run, and each process takes about a min to finish its execution.

So, I want to just execute processes one after another without waiting for their termination.

Any help would be highly appereciated.

Thanks,
Chandan Singh

2

Try using nohup and run the process in the background with &

3

Thanks for your suggestion, Mate.

Nohup will create a nohup.out and will run the process in background.

Is there any other way to achieve this without using nohup?

Thanks,
Chandan

4

Hi.

The GNU versions of xargs can manage processes:

       --max-procs=max-procs
       -P max-procs
              Run up to max-procs processes at a time; the default is  1.   If
              max-procs  is 0, xargs will run as many processes as possible at
              a time.  Use the -n option with -P; otherwise chances  are  that
              only one exec will be done.

-- excerpt from man xargs

See also GNU Parallel - GNU Project - Free Software Foundation

Best wishes ... cheers, drl

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