on my iPad, I need to copy files from an SD card to an SDD drive
I have a powered USB switch into which I can plug in the drives (SD card using a carrier).
I'm going on a long trip and I want to back up my photos while away from computers.
I've looked at a mess of file system management apps, but none seem really up to the task.
I just want to do this (I use a Nikon and iPads don't have BASH):
> dd=/SDD/photos/$(date '+%Y-%m-%d_%H-%M')
> mkdir -p $dd
> cp -p /SD/DCIM/*/*.NEF $dd/.
> dd=/SD/Done/${dd##*/}
> mkdir -p $dd
> mv SD/DCIM/* $dd
iPad