🛠️:Upgrading Lineageos/Extract Script

#!/bin/sh -eu

by_name=$(find /dev/block/platform -type d -name by-name)
boot_dev="$by_name/boot$(getprop ro.boot.slot_suffix)"

dd if="$boot_dev" of=/sdcard/TWRP/$(date +"boot_%F_%Hh%Mm%S_%Z.img")