On Mon, Feb 11, 2013 at 02:34:53PM -0500, Greg Wooledge wrote: > On Mon, Feb 11, 2013 at 06:59:35PM +0000, Alan Mackenzie wrote: > > 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.
> This is more of a help-bash matter than a bug-bash one. OK. > The general approach is these cases is to set up a trap for SIGCHLD. > > The sort of thing I want to do with this is to perform lots of gzippings > > in separate tasks, so as to spread them amongst the cores of my 4-core > > processor, always keeping 4 subtasks on the go at any time. > Oh, THAT particular problem. See > http://mywiki.wooledge.org/ProcessManagement#Advanced_questions Thanks. An interesting page. I'll have to study it. -- Alan Mackenzie (Nuremberg, Germany).
