#!/bin/bash
#####################################################
###backup blah blah
#################################
clear
   
  VALID_PATH=0
  BACKUP_FILE=backup$(date +%Y%m%d).tgz
  BACKUP_DIR=/backup/
   
  [[ ! -d $BACKUP_DIR ]] && mkdir -p $BACKUP_DIR
  echo 1 Perform  Backup
  echo 2 Restore From Backup
  echo 3 Exit Program
 read OPTION
   
  case $OPTION in
   
  "1") echo You picked 1
  echo backup files
  read SOURCE
   
  while [[ $VALID_PATH -eq 0 ]]
   
  do
   
  if [[ -d "$SOURCE" ]]
  then
          VALID_PATH=1
          BACKUP_FILE="$BACKUP_DIR""$BACKUP_FILE"
          echo all files
          echo backed up to $BACKUP_FILE
  else
          echo this is invalid
          echo please retry
          read SOURCE
          if [ "$SOURCE" == q]; then
          echo Goodbye!
          exit 0
 fi
  fi
  done
  tar -czf $BACKUP_FILE $SOURCE && echo "Backup Done" || echo "Backup Failed"
  ;;
   
  "2") echo you chose 2
  echo restore?
  echo backup directory contents
  ls $BACKUP_DIR
  echo enter the name
  read RESTORE_FILE
  RESTORE_FILE="$BACKUP_DIR""$RESTORE_FILE"
   
  until [[ $VALID_PATH != 0 ]]
  do
  if [[ -f $RESTORE_FILE ]]
  then
      VALID_PATH=1
  else
      echo FAIL
      echo Backup directory contents
  echo
      ls "$BACKUP_DIR"
  echo
  echo "q to quit!"
  read RESTORE_FILE
  if [[ "$RESTORE_FILE" == "q" ]]; then
  echo
  echo goodbye!
  exit 0
  fi
  RESTORE_FILE="$BACKUP_DIR""$RESTORE_FILE"
  fi
  done
   
  echo
  echo the file $RESOTER_FILE will be used to perform
  echo
  tar -xvf $RESTORE_FILE
  ;;
   
  "3") echo goodbye
  exit 0;;
   
   
  esac