Transfer group of directories through rsync

[hancooper]

‐‐‐‐‐‐‐ Original Message ‐‐‐‐‐‐‐

On Thursday, August 26th, 2021 at 9:58 PM, Kerin Millar <kfm@plushkava.net> 
wrote:

> On Thu, 26 Aug 2021 09:33:11 +0000
>
> hancooper hancooper@protonmail.com wrote:
>
> > ‐‐‐‐‐‐‐ Original Message ‐‐‐‐‐‐‐
> >
> > On Thursday, August 26, 2021 8:29 AM, Kerin Millar kfm@plushkava.net wrote:
> >
> > > On Thu, 26 Aug 2021 01:30:35 +0000
> > >
> > > hancooper via help-bash@gnu.org wrote:
> > >
> > > > I have a group of directories stored in a bash array called `group`.
> > > >
> > > > I want to use rsync to transfer the files to the same directory paths, 
> > > > but instead of ./01cuneus, the destination is ./temp
> > > >
> > > > I have a bash function that I use, called `myrsync` which takes the 
> > > > source and destination parent directories and the depth
> > > >
> > > > level (that's why ones sees three levels down `./01cuneus` in array 
> > > > `group`) .
> > > >
> > > > myrsync -j 3 --depth=3 --src=./01cuneus --dst=./temp
> > > >
> > > > group: ./01cuneus/tdr/margi/03d-chmed-mrgn 
> > > > ./01cuneus/freelic/latest/freelic-3.4 ./01cuneus/tdr/freelic/releases 
> > > > ./01cuneus/books/Infocs/cvs ./01cuneus/histr/gen-adm/behistun 
> > > > ./01cuneus/histr/gen-adm/uwdiving ./01cuneus/books/releases/survey 
> > > > ./01cuneus/books/GeoMtk/survey--for--geosc 
> > > > ./01cuneus/books/pictures/jpg ./01cuneus/books/Infocs/Gra 
> > > > ./01cuneus/tdr/ch-aggr/part2 ./01cuneus/histr/gen-adm/tdr 
> > > > ./01cuneus/tdr/margi/01d-mimic-mrgn ./01cuneus/tdr/ideogr/06b-amcoh 
> > > > ./01cuneus/articles/detailed/infocs ./01cuneus/articles/detailed/advoc 
> > > > ./01cuneus/tdr/margi/04d-inadq-mrgn 
> > > > ./01cuneus/freelic/releases/freelic-1.0 
> > > > ./01cuneus/tdr/margi/05d-wepst-mrgn
> > >
> > > (
> > >
> > > cd -- "$src" &&
> > >
> > > rsync -aiR --from0 --files-from=<(printf '%s\0' "${group[@]#"$src/"}") . 
> > > "$dst/"
> > >
> > > )
> > >
> > > Kerin Millar
> >
> > Thank you so very much Kerin. Am wondering what the enclosing parentheses 
> > are about.
>
> With the parentheses, it constitutes a compound command that is executed in a 
> subshell. Changing the current working directory will thus not affect the 
> execution environment of the parent shell.
>
> Kerin Millar

What is behind the `-i, --itemize-changes` option?
Info says "output a change-summary for all updates".