backuptotar

#!/bin/bash
# To restore...
# sudo tar -xvpzf {whatever}.tar.gz -C {wherever} --numeric-owner

if    [ $EUID -ne 0 ]
then
      echo "This script must be run as root..."
      echo "Try 'sudo $0'"
      exit 1
fi

user="$SUDO_USER"

host=`hostname`

newdir=$host-backup-$(date +%Y-%m-%d)
mkdir $newdir
cd $newdir

backupfile="$newdir.tar.gz"

tar -cvpzf "$backupfile" --exclude="$newdir" --one-file-system /

cd ..
chown -R $user:$user $newdir