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Re: Waiting for _any_ background process to terminate.
From: |
Alan Mackenzie |
Subject: |
Re: Waiting for _any_ background process to terminate. |
Date: |
Mon, 11 Feb 2013 21:59:11 +0000 |
User-agent: |
Mutt/1.5.21 (2010-09-15) |
On Mon, Feb 11, 2013 at 03:05:25PM -0500, Chet Ramey wrote:
> On 2/11/13 1:59 PM, Alan Mackenzie wrote:
> > Hi, bug-bash.
> > From a bash script, I'd like to be able to start several subtasks and
> > react to any one of them completing. I don't think I can do this with
> > the current bash. The `wait' function either waits on a specified subtask
> > to finish, or for _all_ subtasks to finish.
> > Am I mistaken about this perceived lack? If not, would it be possible
> > to add this functionality into bash?
> Right now, you have to build your own using a SIGCHLD trap. The next
> version of bash will have `wait -n', which will wait for the next process
> to change state.
:-) I'll look forward to the release indeed. Thanks.
> Chet
--
Alan Mackenzie (Nuremberg, Germany).