Divide and look for badblocks

gistfile1.sh

#!/bin/bash


if [ -z $1 ]
then

    echo "Usage: $0 sdx"
    exit

elif [ `echo $1 | grep -c '/dev/'` -eq 0 ]
then

    dev_path="/dev/$1"
    dev_name="$1"

else

    dev_path="$1"
    dev_name=`echo $1 | sed 's@/dev/@@'`

fi


if [ ! -e $dev_path ]
then
    echo "Disck $dev_path not exists."
    exit
elif [ `mount | grep -c $dev_path` -gt 0 ]
then
    echo "Disk $dev_path is mounted."
    exit
fi

echo "The selected disck is $dev_path."
read -n 1 -p "?? Continue? (Y/N)? " answer > /dev/null
case "$answer" in
           [Nn]* )  echo "Nothing to do here..."; exit;;
            * )     echo "Yai!";;
esac

size="$(echo `fdisk -l ${dev_path}| sed -n 's/Disk \/dev.* \([0-9]*\) bytes/\1/p' 2>/dev/null` / 1024^3 | bc)"
parted -s ${dev_path} mktable gpt; 

for i in `seq 0 100 ${size}`; 
do 
    dev_part_name="${dev_name}`expr $i / 100 + 1`";
    dev_part_path="/dev/${dev_part_name}"
    dev_part_badb="/root/${dev_part_name}.bb"

    echo "#### ${dev_part_name} ($i `expr $i + 100`) # ${dev_part_badb}"; 

    parted -s ${dev_path} mkpart BB-$i ${i}GB `expr $i + 100`GB;
    badblocks -b 4096 -c 512 -p 3 -s -v -w -o ${dev_part_badb} ${dev_part_path};
    mkfs.ext4 -j -m 0 -O dir_index,extent,has_journal,large_file,sparse_super -b 4096 -L badblocks-$i -l ${dev_part_badb} ${dev_part_path};

done;