#!/bin/bash
###Use at your own rigk####
###2018 - All rights Reverse :-) ######
getuser=$( whoami )

OSX_108_below ()  #Detect USB devices for OSX 10.8.5 or below.  Since diskutil does not report if devices is external

{
drive=1
while [ $drive -le 50 ];
do
	if [ -e /dev/disk$drive ]
	  then
	    		
		 # device=$( diskutil info /dev/disk$drive | grep "Device / Media Name:" | awk '{print $5}')
		  size=$( diskutil info /dev/disk$drive | grep "Total Size:" | awk '{print $4}' )
		 protocol=$( diskutil info /dev/disk$drive | grep "Protocol:" | awk '{print $2}' )

		if [ "$size" == "GB" ] && [ "$protocol" != "SATA" ]
			then
				# n_drive=$(($n_drive + 1 )) 
				echo "/dev/disk$drive" >> "$logpath"/disk.txt
			      echo "/dev/disk$drive" >> "$logpath"/info.txt
			diskutil info /dev/disk$drive | grep "Device / Media Name:"  >> "$logpath"/info.txt
			diskutil info /dev/disk$drive | grep "Total Size:" >> "$logpath"/info.txt
			diskutil info /dev/disk$drive | grep "Protocol:" >> "$logpath"/info.txt
			echo "----------" >> $logpath/info.txt

		fi
		
		if [ "$size" == "TB" ] && [ "$protocol" != "SATA" ]
			then
				# n_drive=$(($n_drive + 1 ))
				echo "/dev/disk$drive" >> "$logpath"/disk.txt
			      echo "/dev/disk$drive" >> "$logpath"/info.txt
			diskutil info /dev/disk$drive | grep "Device / Media Name:"  >> "$logpath"/info.txt
			diskutil info /dev/disk$drive | grep "Total Size:" >> "$logpath"/info.txt
			diskutil info /dev/disk$drive | grep "Protocol:" >> "$logpath"/info.txt
			echo "----------" >> "$logpath"/info.txt
		fi

	fi

drive=$(($drive + 1 ))

done

}



if [ -d /tmp ] 
 then
  logpath=/tmp
 
 else
   logpath=$getuser
fi

drive=1		
n_drive=0    
while [ $drive -le 10 ];
do
		
	    diskutil eject disk$drive &>/dev/null

drive=$(($drive + 1 ))
done

diskutil list | grep "external" | awk '{print$1}' >> "$logpath"/disk.txt

if [ ! -s "$logpath"/disk.txt ] #check if file is empty because 10.8.5 and below don't device is external
then
	
       OSX_108_below     
	
fi


while read line
do				
		totalsize=$( diskutil list $line | grep "0:" | awk '{print$4}' )
		totalsizeemptyname=$( diskutil list $line | grep "0:" | awk '{print$3}' )
		if [ "$totalsize" == "TB" ] || [ "$totalsize" == "GB" ] || [ "$totalsizeemptyname" == "GB" ] || [ "$totalsizeemptyname" == "TB" ]
		then
		  echo $line >> "$logpath"/d.txt
		  n_drive=$(($n_drive + 1 ))
        fi
done < "$logpath"/disk.txt
rm "$logpath"/disk.txt &>/dev/null
 rm -rf "$logpath"/info.txt &>/dev/null


while read line
do
    diskutil eraseDisk JHFS+ My_Drive $line   
done < "$logpath"/d.txt

rm -rf "$logpath"/d.txt

















































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