Re: OT: launching jobs in a combined serial parallel way
Scott Gifford wrote:
> Kamaraju S Kusumanchi <raju.mailinglists@gmail.com> writes:
>
> [...]
>
>> progc should to be launched only after both proga, progb are finished.
>> progc takes another couple of hours to finish.
>>
>> What is good way to automate this problem (that is no manual
>> interaction)?
>
> In a shell script, run proga and progb in the background, then wait
> for them both with the "wait" builtin. Something like this:
>
> #!/bin/sh -e
> # -e flag will abort on any error
> proga & # Start proga in background
> progb & # Start progb in background
> wait # Wait for whichever finishes first
> wait # Wait for the other one
> progc # Now run progc in the foreground
>
> ----Scott.
This is great. A little perusal of 'man wait' gave me a better idea.
nohup proga &
pa=$!
nohup progb &
pb=$!
wait $pa $pb
nohup progc &
Thanks a lot. Just what I am looking for.
raju
--
Kamaraju S Kusumanchi
http://malayamaarutham.blogspot.com/
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