I am creating a bash script to unmount my usb drive after the backup is done.
To unmount the drive I use the command:
diskutil unmount disk4s1
But sometimes when I plug my usb drive it gets a different dev name, as disk3s1, or disk2s1.
I need add a line in my script before unmount the disk, to get the dev name associated to my volume name.
What command could I use to get the dev name given its volume name?
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