Transfer group of directories through rsync

[hancooper]

‐‐‐‐‐‐‐ 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.