rsync progress

[Johnny Rosenberg]

2013/9/28 Johnny Rosenberg <gurus.knugum at gmail.com>

>
> So far I have almost never got any answers to anything I asked here, so
> here is the next exciting question:
>
> I have a script that runs rsync for backup from my internal drive to an
> external one. It works great, but it would be nice to see the progress. It
> doesn't necessarily need to be based on file size, I just want to get some
> kind of hint what's going on.
>
> So I searched around and ended up with something like this, just for
> testing if it works:
>
> LineCount=$(find /Some/Folder | wc -l)
> rsync -anuv /Some/Folder /media/Backup/AnotherFolder/ | pv -l -e -p -s
> ${LineCount}
>
> (pv – Pipe Viewer – needs to be installed first: apt-get install pv)
>
> What happens in my case is that all those lines from rsync are scrolling
> and the last line is:
> [===================================================================================================================>]
> 100%
>
> Not very useful information if you ask me.
> I expected no lines scrolling from rsync, but only a ”progress bar” and
> the progress in % displayed. What am I missing?
>

I think I found the answer myself in a video tutorial on YouTube…
I can just throw the output away:
LineCount=$(find /Some/Folder | wc -l)
rsync -anuv /Some/Folder /media/Backup/AnotherFolder/ | pv -l -e -p -s
${LineCount} > /dev/null

Then the 100% thing is all I see. It seems like it doesn't update very
often, that's why I only see 100%. I tried rsync with a much bigger folder
and now I got different numbers, and it seems like they are displayed every
second or so.
Then I found pv's -i option:

LineCount=$(find /Some/Folder | wc -l)
rsync -anuv /Some/Folder /media/Backup/AnotherFolder/ | pv -l -e -p -s
${LineCount} -i 0.1 > /dev/null

Now the numbers appear ten times per second. Nice!


Johnny Rosenberg
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