rstusrbak

#!/usr/bin/zsh
printf 'Path to backup file: '
read RestoreTarget
BackupSize=$(sudo du -sh $RestoreTarget | awk '{print $1;}')
CurrentSize=$(df -h /home/admin | awk '{print $4;}' | head -n 2 | tail -n 1 | awk -FG '{print $1}')
DONE=0
sudo tar -xzvpf $RestoreTarget ./ &> /dev/null & disown && RestorePID=$!
x=1
while [ $x = 1 ]
do
  if [ $DONE = 0 ]
    then UsageStatus=$(df -h /home/admin | awk '{print $4;}' | head -n 2 | tail -n 1 | awk -FG '{print $1}')
    Status=$(( $CurrentSize - $UsageStatus ))
    clear
    printf 'Restoring backup to /home/admin/\n'"$Status"'G of '"$BackupSize"'\nExtracting...'
    if ps -p $RestorePID > /dev/null
      then :
    else
      DONE=1
    fi
    sleep 1
  else
    x=0
  fi
done
clear
printf 'Restored backup to /home/admin/\n'"$Status"' of '"$BackupSize"'\nDone.'