Re: Running consecutive

From	Rich <rich@example.invalid>
Newsgroups	comp.os.linux.misc
Subject	Re: Running consecutive
Date	2022-11-13 20:40 +0000
Organization	A noiseless patient Spider
Message-ID	<tkrkn4$1hcd3$1@dont-email.me> (permalink)
References	<tklq3v$sif5$1@dont-email.me> <wwviljlv0t2.fsf@LkoBDZeT.terraraq.uk> <tkr1qt$1fnee$2@dont-email.me>

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db <dieterhansbritz@gmail.com> wrote:
> On 11.11.2022 18.49, Richard Kettlewell wrote:
>> db <dieterhansbritz@gmail.com> writes:
>> 
>>> I am preparing for an upgrade of my Kubuntu system, and have to do 
>>> a lot of synching.  Some of these will take a longish time, so I 
>>> want to do them using a script.  However, I find that the lines in 
>>> the script get run simultaneously, rather than one after the other.  
>>> How do I get them to run one after the other?
>> 
>> Shell scripts normally run commands consecutively rather than 
>> concurrently.  If you want people to debug your script you will have 
>> to post it.
>> 
> 
> OK, here is a sample:
> 
> echo " Running 64"
> rsync -ar arraydata64/ Dropbox/arraydata64
> echo "running 128"
> rsync -ar arraydata144/ Dropbox/arraydata144
> echo "Finished"
> 
> When I just ran this, I got the two messages immediately, although
> both synchs take a few seconds.

Those run sequentially (one after the other), but if the data is 
already synchronized, rsync will complete very fast, which is probably 
giving you a false sense of "concurrency".

Try adding rsync's verbose or itemize flags (or both) to the rsync 
lines so you get status output from rsync and you'll see that the "64" 
rsync completes before the "running 128" echo happens.

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Running consecutive db <dieterhansbritz@gmail.com> - 2022-11-11 16:35 +0100
  Re: Running consecutive Aragorn <telcontar@duck.com> - 2022-11-11 16:43 +0100
  Re: Running consecutive Richard Kettlewell <invalid@invalid.invalid> - 2022-11-11 17:49 +0000
    Re: Running consecutive db <dieterhansbritz@gmail.com> - 2022-11-13 16:17 +0100
      Re: Running consecutive Richard Kettlewell <invalid@invalid.invalid> - 2022-11-13 15:44 +0000
      Re: Running consecutive Aragorn <telcontar@duck.com> - 2022-11-13 16:56 +0100
        Re: Running consecutive Richard Kettlewell <invalid@invalid.invalid> - 2022-11-14 09:00 +0000
          Re: Running consecutive Aragorn <telcontar@duck.com> - 2022-11-14 14:57 +0100
      Re: Running consecutive Rich <rich@example.invalid> - 2022-11-13 20:40 +0000
        Re: Running consecutive db <dieterhansbritz@gmail.com> - 2022-11-14 11:07 +0100
      Re: Running consecutive The Natural Philosopher <tnp@invalid.invalid> - 2022-11-14 13:48 +0000
  Re: Running consecutive "Carlos E.R." <robin_listas@es.invalid> - 2022-11-11 21:10 +0100
  Re: Running consecutive Pancho <Pancho.Jones@proton.me> - 2022-11-11 21:16 +0000

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