#!/bin/bash

#
# name: 04_system_backup.sh
# path: /root/Configs/Backup_Scripts/04_system_backup.sh
#### #### #### ####
# usage: sh $0 $1 #as root
#### #### #### ####
# comment:  backs up the complete system to the external hard-disk, partition1
#### #### #### ####

clear
date
echo "
     "

########
# VARs
########

BU_MP="/media/backup"
BU_DEV=

USER=`id -u`

#########################################
# Check for the conditio sine qua non
#########################################

if [ "$USER" -eq 0 ]
then
    echo "you are root. All cool"
    if [ "$#"  == 1 ]
    then
        BU_DEV="$1"
        echo "We will mount "$1" on "$BU_MP", correct? "
        read answer
        case "$answer" in
            "yes" | "y" | "Yes" ) echo "ok" ;;
            "no" | "n" | "No" ) echo " Check the code"
                                exit 0 ;;
             * ) "you are too dumb to give a simple answer"
                 exit 0 ;;
        esac
    else
         echo "You missed the device to be mounted. Do it now"
         fdisk -l
         echo -n "which one, full name, like /dev/sdx? "
         read BU_DEV
         echo "We will mount "$BU_DEV" on "$BU_MP", correct? "
         read answer
         case "$answer" in
             "yes" | "y" | "Yes") echo "ok" ;;
             "no" | "n" | "No" ) echo "Check the  code"
                                 exit 0 ;;
              * ) echo "Visit a shrink"
                  exit 0
         esac
     fi
else
    echo "You need to run the script as root"
    echo " Add a device which shall be mounted "
    exit 0
fi

##############################
# Mount "$BU_DEV" on "$BU_MP"
##############################

mount "$BU_DEV" "$BU_MP"
ls /media/backup

echo -n "Looks good, you wanna run rsync now? "
read answer
case "$answer" in
    "yes" | "y" | "Yes" ) echo "ok" ;;
    "No" | "n" | "No" ) echo "Check the code"
                        umount "$BU_MP"
                        exit 0 ;;
     * ) echo "Have a break, pal"
               umount "$BU_MP"
               exit 0
esac


################################
# run the Backup
# remove " -n and > dry.txt once you know it works
##################################################

rsync -auv -n  --delete-after \
--exclude="/home/m1arkust/[a-zA-Z0-9]*" \
--exclude="/home/m1arkust/.VirtualBox/*" \
--exclude="/home/xepanche/[a-zA-Z0-9]*" \
--exclude="/proc/*" \
--exclude="/lost+found/*" \
--exclude="/dev/*" \
--exclude="/mnt/*" \
--exclude="/media/*" \
--exclude="/sys/*" \
--exclude="/tmp/*" \
/ /media/backup  > dry.txt

######################
# Last infos
#######################

echo "
    Rsync did finish, here is the actual content of "$BU_MP" "
ls "$BU_MP"
echo "
    If it is wrong you are on your own. "
echo "
     "$BU_MP" will be umounted now"
umount "$BU_MP"

echo "
    Bye
    "

exit 0