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Re: Wanted: bash enhancement... non-blocking 'wait'


From: Eric Blake
Subject: Re: Wanted: bash enhancement... non-blocking 'wait'
Date: Fri, 03 Sep 2010 11:44:38 -0600
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On 09/02/2010 04:44 PM, Philip Prindeville wrote:
I wanted to check in and see if there was a chance of this feature being
accepted upstream before I spent any time on it... so here goes.

The "wait [n]" command is handy, but would be even handier is:

wait [[-a] n]

instead, which asynchronously checks to see if process 'n' has completed.

What's wrong with using the existing 'kill -0 pid' to check if pid still exists, rather than inventing a new argument to 'wait'?

--
Eric Blake   address@hidden    +1-801-349-2682
Libvirt virtualization library http://libvirt.org



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