What's in your opinion the best way to back up/clone video files from an sd card on to 3 external usb harddisks, simultaneously?

I have to assist in a video shoot and I don't see doing this back up work manually.

  • 2
    3 separate rsync commands running in tmux?
  • 1
  • 1
    Have a little script that runs `cp` the times, prepending whatever you like to the destination path ?
  • 2
    cp to /tmp/ and then simultaneously to the HDDs if read speed is a limiting factor for doing 3 simultaneous copies directly from the SD
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