Backup all luks header

luksHeaderBackup.sh

#!/bin/bash
function backupdev () {
    DEV=$1
    if cryptsetup isLuks $DEV 2>/dev/null; then
        DEVNAME=$(basename $DEV)
        echo "Backup $DEV"
        cryptsetup luksHeaderBackup $DEV --header-backup-file "luksHeaderBackup_${HOSTNAME}_${DEVNAME}.bin"
    fi;
}


for dev in $(lshw -quiet -short -class disk -class volume | awk '{print $2}'); do
    backupdev $dev
done