How to create an applescript for multiple dd terminal commands in sequence (for multiple USB Drives duplication) I need to create an apple script to perform DD Commands in sequence, to replicate the same .img file to multiple USB flash drives

The context: the computer is connected to a powered USB hub with 7 usb flash drives connected and unmounted by diskutil. No other USB devices or disk are connected to the computer (so the USB Sticks will be assign a disk1 - disk7 resource mapping)

The steps


a file named  "source.img" will be prepared and put on the desktop (say an .img of a bootable OS)
terminal must be asked to change directory to the desktop
with administrative privileges (the password can be inserted into the script, or asked once to the user) it must be asked to perform:


"sudo dd if=source.img of=/dev/rdisk1 bs=1m"


the script must wait until the operation is concluded, then ask the terminal to perform another DD, to disk2 this time:


"sudo dd if=source.img of=/dev/rdisk2 bs=1m"

and again, wait until the operation is concluded, and then ask:

"sudo dd if=source.img of=/dev/rdisk3 bs=1m"

and so on with rdisk4, rdisk5, rdisk6, rdisk7.


at the end of the disk7 operation , the script can shut down the terminal and send a finder message to the user (or an audio notification) that the USB Duplication process to the 7 flash drives is concluded.


It's a way to create a "USB duplicator on the cheap" for bootable images to be put on multiple sticks, I need it for a school project to my students.

Anybody can help ? I am a zero with Applescript. And this thing will be useful for many.

Thank you !
Alberto
You can do this with a bash script.

#!/bin/bash

SOURCE="/Users/username/Desktop/source.img"

dd if=$SOURCE of=/dev/rdisk1 bs=1m
dd if=$SOURCE of=/dev/rdisk2 bs=1m
dd if=$SOURCE of=/dev/rdisk3 bs=1m
dd if=$SOURCE of=/dev/rdisk4 bs=1m
dd if=$SOURCE of=/dev/rdisk5 bs=1m
dd if=$SOURCE of=/dev/rdisk6 bs=1m
dd if=$SOURCE of=/dev/rdisk7 bs=1m

osascript -e 'display notification "Drives complete" with title "Complete!"'


Make the file executable (once):

chmod +x ~/Desktop/script.sh


Run it with administrative privileges:

sudo ~/Desktop/script.sh