reto

#! /bin/bash
#set -x

# Requirements:
# /etc/default/grub: GRUB_DEFAULT=saved
# visudo: %sudo   ALL=(root) NOPASSWD: /usr/sbin/grub-reboot
# Remenber that GRUB_DEFAULT is now saved. If you select Windows manually
# on a boot, it will continue to boot windows until you select something
# else 

THINGY_CONSOLEKIT="dbus-send --system --print-reply --dest=org.freedesktop.ConsoleKit /org/freedesktop/ConsoleKit/Manager"

# This will select ubuntus and windowses.
GRUBLIST=$(grep "^menuentry '[UW]" /boot/grub/grub.cfg | cut -d "'" -f2)
echo $DISPLAY
if [ -z "${DISPLAY}" ]; then
  # Suggestions for doing this another 
  # (better) way is (highly) appreciated
  TMPFILE=$(mktemp)
  exec 3>$TMPFILE
  echo "${GRUBLIST}" | awk 'BEGIN { ORS="\0" } {print $0 "\0" }' | xargs --null dialog --output-fd 3 --menu "Select GRUB record" 0 0 3
  exec 3>&-
  SELECTED=$(cat "${TMPFILE}")
  rm "${TMPFILE}"
else
  SELECTED=$(echo "${GRUBLIST}" | zenity --list --column='Select GRUB record' 2>/dev/null | cut -d '|' -f1)
fi

if [ -z "${SELECTED}" ]; then
  echo "No choice made reboot option, assuming cancel."
  exit 1
fi

sudo grub-reboot "${SELECTED}"
$THINGY_CONSOLEKIT org.freedesktop.ConsoleKit.Manager.Restart