rstsysbak

#!/usr/bin/zsh
printf 'Path to backup file: '
read RestoreTarget
printf 'Path to restore to: '
read RestoreDestination
printf 'WARNING! This will extract the selected backup to '"$RestoreDestination"'\nIf a Linux filesystem exists in this path it will be overwritten.\nContinue? (Y/N) '
read CONTINUE
if [ $CONTINUE = 'Y' ]
  then BackupSize=$(<"$RestoreTarget"'_SIZE')
  CurrentSize=$(df -h $RestoreDestination | awk '{print $4;}' | head -n 2 | tail -n 1 | awk -FG '{print $1}')
  DONE=0
  sudo tar -xvpzf $RestoreTarget -C $RestoreDestination --numeric-owner &> /dev/null & disown && RestorePID=$!
  x=1
  while [ $x = 1 ]
  do
    if [ $DONE = 0 ]
      then UsageStatus=$(df -h $RestoreDestination | awk '{print $4;}' | head -n 2 | tail -n 1 | awk -FG '{print $1}')
      Status=$(( $CurrentSize - $UsageStatus ))
      clear
      printf 'Restoring backup to '"$RestoreDestination"'\n'"$Status"'G of '"$BackupSize"'\nExtracting...'
      if ps -p $RestorePID > /dev/null
        then :
      else
        DONE=1
      fi
      sleep 1
    else
      x=0
    fi
  done
  sudo mkdir "$RestoreDestination"'proc'
  sudo mkdir "$RestoreDestination"'tmp'
  sudo mkdir "$RestoreDestination"'mnt'
  sudo mkdir "$RestoreDestination"'dev'
  sudo mkdir "$RestoreDestination"'sys'
  sudo mkdir "$RestoreDestination"'run'
  sudo mkdir "$RestoreDestination"'media'
  sudo mkdir "$RestoreDestination"'var'
  clear
  printf 'Restored backup to '"$RestoreDestination"'\n'"$BackupSize"' of '"$BackupSize"'\nDone.'
else
  printf 'Restore aborted.\n'
fi