How to filter/pipe wmi output from batch or command prompt

Question

I need to write a little script for a specific HDD.
I use the following command to detect the HDD by size:

 C:\>wmic logicaldisk get size,freespace,caption | find "750153363456"

 E:       27996512256  750153363456

Now I need to store the drive-letter from that output (in this case E:) into a variable. How can I do that?

Solution

why dont you use the serialnumber to find your drive ? One possible solution saving the result of wmic in a file :

REM replace D4B12CD with your drive serialnumber

wmic logicaldisk get caption,volumeserialnumber |findstr D4B12CD > c:\temp\Hdd.txt 
for /f %%i in (c:\temp\hdd.txt) do set mydrive=%%i

REM now mydrive contains the letter of your drive
echo %mydrive%

Comments

[Wally]

I think that if you don't want to do a serialnumber search, you could at least store the value in a text file as demonstrated here.