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#!/bin/sh
# A dmenu prompt to unmount drives.
# Provides you with mounted partitions, select one to unmount.
# Drives mounted at /, /boot and /home will not be options to unmount.
unmountusb() {
[ -z "$drives" ] && exit
chosen="$(echo "$drives" | dmenu -i -p "Unmount which drive?")" || exit 1
chosen="$(echo "$chosen" | awk '{print $1}')"
[ -z "$chosen" ] && exit
sudo -A umount "$chosen" && notify-send "💻 USB unmounting" "$chosen unmounted."
}
drives=$(lsblk -nrpo "name,type,size,mountpoint,label" | awk -F':' '{gsub(/ /,":")}$4!~/\/boot|\/efi|\/home$|SWAP/&&length($4)>1{printf "%s (%s) %s\n",$4,$3,$5}')
if [ -z "$drives" ]; then
echo "No drives to unmount." && exit
else
echo "Unmountable USB drive detected."
unmountusb
fi
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